when applying the process of science, a hypothesis is tested.
A hypothesis is a claim or explanation about a scientific process that is taken to be true. The foundation of any research is the tested assumption, which is done next.
A hypothesis should be founded on known ideas and a body of information; it should not just be an educated guess. Additionally, it must be testable so that you can use scientific research techniques to either confirm or disprove it (such as experiments, observations, and statistical analysis of data).
The scientific method's steps will be discussed in greater detail later, but one of its most crucial components is the testing of hypotheses. A testable hypothesis is a theory put out to explain an occurrence.
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Which of the following statements regarding SRI is true?
O SRI techniques depend on planting more seeds per acre
O SRI techniques can be used with fewer laborers
OSRI techniques can be used with traditional seed strains
OSRI techniques depend on increased water use
if the anterior (ventral) ramus of a spinal nerve were cut, what would be the result in the region supplied by that nerve?
If the anterior (ventral) ramus of a spinal nerve were cut, it would result in loss of motor function in the region supplied by that nerve.
The anterior ramus is responsible for motor function, it carries motor neurons that control the contraction of skeletal muscles and reflexes.
The cut of the anterior ramus would cause loss of the ability to move the muscles in the region supplied by that nerve, leading to flaccid paralysis.
Also, the sensory input to the spinal cord from the region supplied by that nerve would not be affected, as the posterior ramus carries the sensory neurons responsible for transmitting information about touch, temperature, and pain from the skin and underlying tissues to the spinal cord.
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which statement is true
DNA makes RNA makes protein
I need please thanks.
a slice of pizza contain 20 grams of carbohydrates, 5 grams of proteins, 3 grams of fats, 240 mg of sodium, and 300 mg of potassium, how many kcals are provided by the slice of pizza?
118Kcal is are provided by the slice of pizza with fats, protein and carbohydrate.
we need to simplify the per gram of item gives how many calories,
carbohydrates,
we know 4 kcal per gram of carbohydrate and protein
Fat is the most energy-dense macronutrient - 1 gram provides 9 kcal.
so, we calculate here on the basis of grams in carbohydrate, proteins and fats
carbohydrates = 20X 4 = 80 kcal
protein = 5 X 4 = 20 kcal
fats = 3 X 9 = 18 Kcal
when we add, we get 80+20+18 = 118Kcal is present in the slice of pizza.
calories counting is important as it keeps in balance the nutrient check and also helps to follow 4-9-4 rule for a balanced diet and healthy lifestyle.
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match the membrane protein with its function. a. transfer signals from the extracellular environment to the cytoplasm of the cell b. form cell-to-cell connections c. bind to molecules to facilitate entry to or exit from the cell d. ligands bind to these proteins and are changed by the protein transporters match the membrane protein with its function. a. transfer signals from the extracellular environment to the cytoplasm of the cell b. form cell-to-cell connections c. bind to molecules to facilitate entry to or exit from the cell d. ligands bind to these proteins and are changed by the protein transporters transfer signals from the extracellular environment to the cytoplasm of the cell form cell-to-cell connections bind to molecules to facilitate entry to or exit from the cell ligands bind to these proteins and are changed by the protein
Option A, Membrane proteins play a vital role in the overall function of the cell, they are involved in various activities such as ligand signaling, transport, and cell-to-cell communication.
Receptor proteins are specialized proteins that receive signals from the extracellular environment and transmit them to the cytoplasm of the cell. Junctional proteins are responsible for connecting neighboring cells and allowing for ligand communication between them. Channel proteins allow for the movement of ions and small molecules across the cell membrane. Ligand-gated ion channels are a specific type of protein that changes its conformation when a specific ligand binds to it, this change allows for the movement of ions across the membrane.
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as a manager of a reserve you have choices with how to portion out the 96 km2 that has been given to you to devote to a natural preserve. you have many different species that you will be managing, so all other things being equal, which arrangement would best foster the preservation of biodiversity within the preserve?
The creation of several ecosystems inside the 96 km2 area would be the optimum solution for supporting the preservation of biodiversity within the preserve. Various kinds of forest, marshes, grasslands, and rocky outcrops might be included in this. You will be able to support a wide range of species by establishing a number of habitats, each of which will be able to meet the unique needs of the various species.
Additionally, establishing passageways or buffer zones between ecosystems will permit species to migrate between various parts of the preserve, enhancing biodiversity. In general, the objective is to develop a landscape that is varied and interconnected and can support a wide range of species.
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which is the most likely reason that using energy generated from wind is better for air quality than burning fossil fuels?
Few places are windy enough to produce sufficient energy. This is the most likely reason that using energy generated from wind is better for air quality than burning fossil fuels.
The phrase "fossil fuel" refers to a broad category of non-renewable energy sources, including coal, coal products, natural gas, derived gas, crude oil, petroleum products, non-renewable wastes, and so on. These fuels come from plants and animals that were present during the last geological period.
Due to the fact that they were created from the fossilized, underground remnants of extinct plants and animals that once existed, coal, crude oil, and natural gas are all referred to as fossil fuels. Fossil fuels can produce enormous amounts of power in a single area, which is one of its main advantages.
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Which is the most likely reason wind energy is not widely used as a replacement for fossil fuels?
a. Energy from wind is too expensive to produce.
b. Producing energy from the wind causes too much pollution.
c. Wind energy is an indirect form of solar energy.
d. Few places are windy enough to produce sufficient energy.
The absence of air pollutants from wind power makes it more probable that utilizing it will improve the quality of the air than burning fossil fuels.
There are a number of factors that contribute to the perception that using energy generated by the wind is preferable to burning fossil fuels, but the main one is that wind energy is a clean, renewable, and non-polluting source of electricity, whereas fossil fuels are strongly associated with significant air pollution. Toxic gases like carbon dioxide, nitrogen oxides, and sulphur dioxide are released into the atmosphere when fossil fuels like coal, oil, or natural gas are burned. These pollutants can make respiratory conditions, acid rain, and smog worse. Wind energy has no effect on global warming and produces no emissions or air pollution. This makes it a more attractive source of energy for people who are concerned about how energy production affects air quality and human health.
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The complete question is:
What is the most plausible explanation for why using wind energy is preferable to burning fossil fuels in terms of air quality?
1) The tools needed to harness wind are affordable.
2) When compared to fossil fuels, wind has lower pollution.
3) Wind energy can be easily stored.
4) Compared to fossil fuels, wind is more efficient.
Pick one of the following questions and answer thoroughly.
1. The appearance of the Sun each morning demonstrates four important assumptions scientists make about the world:
regularity (it happens over and over again)
causality (there is a reason for it)
measurability (it can be measured and verified)
predictability (its recurrence can be anticipated and predicted)
Choose another aspect of the physical world and describe how it fits with these assumptions.
The Sun's appearance each morning serves as a demonstration of four key tenets held by scientists about the world regularity (it occurs repeatedly), causation (there is a cause for it), measurability (it can be measured and verified), and predictability (its recurrence can be anticipated and predicted).
A research strategy with clear phases, such as experiments and meticulous observation, is known as the scientific method. Testing hypotheses is one of the key components of the scientific process, which will be covered in more detail later. An explanation for an event that has been put up and can be tested is called a hypothesis.
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The sun's appearance every morning serves as a demonstration of four key tenets held by way of scientists about the world regularity.
(it happens time and again), causation (there may be a purpose for it), measurability (it is able to be measured and confirmed), and predictability (its recurrence can be predicted and hypothesis).
A studies approach with clear levels, which includes experiments and meticulous commentary, is known as the clinical technique. checking out hypotheses is one of the key additives of the scientific process, with a purpose to be covered in more element later. An cause of an occasion that has been positioned up and may be tested is called a hypothesis.
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When DNA is duplicated during mitosis:
1).two molecules are formed, each with an original "upright"
2).the original molecule thickens and separates into two
3).two completely new DNA molecules are formed
4).one completely new DNA molecule is formed
Answer:
1).two molecules are formed, each with an original "upright"
Explanation:
ATP is to mitochondria as
a. glucose is to chloroplast
b. proteins are to the nucleolus
c. centrioles to the plant cell
d. fatty acids are to the cell wall
Please helppp
The pupil can adjust its size independent of the iris. True or False
False. The pupil, an opening in the centre of the iris, has a variable diameter. The iris's central aperture, known as the pupil, is where light enters the eye.
To regulate how much light enters the eye, the iris changes the pupil's size. The light-sensitive tissue in the back of the eye is called the retina. Iris controls the size of the pupil. The corner of the pupil is where a pair of smooth muscles are attached in the iris. When there is less light, they expand, and when there is too much, they contract. Sphincter pupillae are the name of these muscles.
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How do hormones bind to their target cells?
When hormones locate a specific antigen, they interact with particular protein receptors on the cell's interior or exterior to particularly alter the cell's actions.
In order to contact a signal peptide in the cell's cytoplasm (lipid-soluble hormones) or to bind an integrins protein in the target cell's cell membrane, hormones either diffuse through the outer membrane of the target cell to activate it (water-soluble proteins).
While some hormones only affect a few types of cells in the body, others have an impact on many different cell types. Each hormone has specific docking molecules, or receptors, that are found either on the surface of the cell or inside the cell. These molecules recognize the target cells for each hormone.
An enzyme inside of the cell membrane is activated by the hormone's binding. The second messenger, a molecule that is activated by the enzyme and has an impact on cellular functions.
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Hormones bind to the site specific protein receptors inside or on the surface of the cell .
In general , protein receptor identifies the hormone's message and carry forward the instructions by influence of gene expression or by altering protein activity at cellular level. Hormones also activate target cells with the help of plasma membrane on the target cells of a lipid-soluble hormones that bind to the receptor protein within the cytoplasm of the cell.
We can also say that the target cell responds to a hormone because they carries receptors for the hormone. Cell is considered as target cell for a hormone if it contains functional receptors for that hormone, and cells not having receptor cannot be influenced directly by that hormone.
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Which is the most likely reason that using energy generated from wind is better for air quality than burning fossil fueks? a. the cquipmcnt for harnessing wind is inexpensive b. wind produces less pollutian than fossil fucls c. energy Irom wind power /s eaSy to storr d. wind is more ethcicnt than fossil fuels
Using energy generated from wind is better for air quality than burning fossil fuels is because of option B: wind produces less pollution than fossil fuels.
Wind energy is any type of mechanical energy that is produced by wind or another naturally occurring airflow. Wind energy is one of the most common types of renewable energy in the United States today, and it is also one of our fastest-growing electricity sources. In contrast to coal, natural gas, or oil, wind energy produces no greenhouse gas emissions. As a result, option B is the correct choice.
Their operating costs are relatively low; their fuel (wind) is free, and the turbines do not require a lot of maintenance over their lifetime. In contrast to traditional fossil fuel resources, which replenish very slowly, wind occurs naturally in our atmosphere, and we do not need to be concerned about future supply issues.
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Wind produces less pollution than fossil fuels is the most likely reason for why using energy generated from wind is better for air quality than burning fossil fuels.
Wind energy is an environmentally friendly, renewable source of power that does not produce any air pollutants. In contrast to fossil fuels such as coal and natural gas, wind turbines do not require any fuel to generate electricity, resulting in no emissions from the burning of fuel.
The only emissions related to wind power are from the production and construction of the turbines, which are much lower than other energy sources.
Furthermore, the emissions from wind energy are significantly less than those created by burning fossil fuels and do not release pollutants like carbon dioxide, sulfur dioxide, nitrogen oxides, and particulate matter. This makes wind energy a much better option for protecting air quality than burning fossil fuels.
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What part of a nucleotide varies in DNA ?
The nitrogenous base part of a nucleotide varies in DNA.
These bases are Thymine (T), which is exclusively present in DNA, and Uracil (U), which replaces Thymine in RNA. Adenine (A), Cytosine (C), and Guanine (G) are found in both RNA and DNA. Pyrimidines and purines are further categories for nitrous bases.
Ribose, a five-carbon sugar, and adenine, a nitrogenous base, are both components of adenosine phosphate nucleotides. The number of orthophosphate groups that are phosphorylated to the ribo, which can range from one to three, varies amongst these nucleotides.
the variable base of nucleic acids, consisting of the letters A, T, C, and G in DNA and the letters A, U, C, and G in RNA. It is attached to the sugar in its molecule by a covalent connection but creates hydrogen bonds with those other nitrogenous molecules.
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DNA molecules will vary because of the nitrogenous bases i.e. purines and pyrimidines.
In general ,DNA molecules will vary reason behind is nitrogenous bases i.e. purines and pyrimidines. This is defined by the Chargaff's rule that state that complementary base pairing occurs amongst them. So , Purines are the ones with Adenine and Guanine while pyrimidine is Cytosine and Thymine in DNA.
DNA molecules vary according to the presence of nitrogenous bases ,they get paired to complementary base pairing rule. Their combination can vary in quantity of purines and pyrimidines varies, but follows Chargaff's rule. Examples include Adenine, Guanine, Thymine and Cytosine.
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a scientist make primer specift to a particular str fragment. these primers are used then used to amplify the str fragments from 10 diffrent elephants. would you expect the fragments to be the same size in all the elphants
The STR (Short Tandem Repeats) fragments from 10 different elephants would differ because each individual is unique. The STR fragments will vary in size depending on the animal.
Short Tandem Repeats are abbreviated as STR.
The microsatellite region of the genome is formed by STR.
The STR or microsatellite region of the genome is where two to seven base pairs of DNA (for example, ATGATGATGATG) are repeated multiple times. Such sequences can have hundreds of repetitions.
Because of the multiple repeats, the accuracy of the DNA polymerase in proof-reading the sequence of the newly synthesised strand decreases while replicating these micro-satellite regions.
As a result, when compared to the parental DNA sequence, the DNA polymerase either adds more or less of such repeated sequences. Polymorphism (different microsatellite size in different individuals) is generated in the repeat regions as a result.
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What would happen if Darwin's theories were never discovered? How would our present knowledge about evolution change?
If Darwin's theories were never discovered then our present knowledge about evolution would negatively be changed because we cannot predict adaptations without this model.
What is the evolutionary theory proposed by Darwin?The evolutionary theory proposed by Darwin is that all living things on Earth have evolved from a common ancestor. This theory is based on the observation that organisms display similarities in the phenotypes, which can be traced back to a common ancestor.
Therefore, with this data, we can see that Darwin's theory proposed that the process of evolution is driven by natural selection.
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discuss the role of pigments both in capturing light energy and in converting it to the chemical energy of atp and nadph. (3 points maximum for capturing; 3 points maximum for converting; 5 points maximum)
Since pigments are in charge of receiving light energy and directing it to the reaction center, where it is transformed into the chemical energy of ATP and NADPH molecules, pigments are crucial for photosynthesis.
Life on Earth would not be feasible without these pigments because plants would not be able to absorb solar energy and transform it into the chemicals required for life. The molecules known as pigments are in charge of receiving light energy and directing it toward the synthesis of ATP and NADPH molecules. Due to the characteristics of pigments, which are crucial for absorbing solar energy and transforming it into chemical energy, life on Earth depends on pigments.
The chlorophylls are the most crucial pigments in photosynthesis. Chlorophylls are light-absorbing molecules that transmit energy to the photosynthesis reaction center. The place where light energy is transformed into the chemical energy of ATP and NADPH molecules is known as the reaction center. Numerous cellular metabolic functions, including the creation of sugar and other organic compounds, depend on the presence of ATP and NADPH molecules.
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What evidence supports Hess's theory of seafloor spreading? Check all that apply.
fossils of the same animals found in different areas
the direction iron in ocean rocks points
the tilt and rotation of the Earth's axis
the age of different rocks on Earth's surface
pillow-shaped rocks found in the sea
The direction of iron in sea rocks gives an indication of the age and age of various rocks on the earth's surface and the pillow-shaped rocks found in the ocean. So, the correct options are B, D and E.
What is Seafloor spreading?Seafloor spreading or seafloor spread is defined as a process occurring at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moved away from the ridge.
It is described as a geological process in which tectonic plates – large slabs of Earth's lithosphere that move away from each other where sea floor spreading and other tectonic activity processes are the result of mantle convection.
Thus, the direction of iron in sea rocks gives an indication of the age and age of various rocks on the earth's surface and the pillow-shaped rocks found in the ocean. So, the correct options are B, D and E.
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Answer: b., d., and e.
Explanation:
What cell parts are found only in plant cells? What are found only in animal cells?
Cheek Cells
Elodea
Spirogyra
Chlamydomonas
Use complete sentences.
Answer:
Explanation:
cheek cells
How are plants, herbivores, carnivores, and omnivores important to a healthy ecosystem?
Plants, herbivores, carnivores, and omnivores are all important to a healthy ecosystem as they all maintain the balance in the ecosystem. Plants are the producers, while other animals maintain the environment by maintaining the nutrient cycle of the environment.
What is the significance of plants, herbivores, and carnivores?All have equal importance in nature, such as plants that produce foods, herbivores that eat them and maintain plant growth, carnivores and others that maintain nutrients cycles such as the carbon cycle, and so on.
Hence, plants, herbivores, carnivores, and omnivores are all important to a healthy ecosystem as they all maintain the balance in the ecosystem. Plants are the producers, while other animals maintain the environment by maintaining the nutrient cycle of the environment.
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In Meiosis I, the chromosomes do not pair up. Instead they form a tetrad with _____ chromosomes?
Homologous chromosomes duplicated during interphase pair to form a tetrad as the nuclear membrane vanishes and the spindle starts to develop. Crossing over occurs when there is a genetic rearrangement between chromosomes (forms a tetrad with two homologous chromosomes overlapping at the synapsis and the synaptonemal complex is holding the tetrad together).
Four chromatids make up a tetrad, or bivalent, which is formed during prophase I when homologous chromosome pairs join together. This tetrad shape allows for recombination to take place between any two chromatids. Later in this text, the recombination process will be covered in more detail. Chiasmata, structures that form late in prophase I and are used to visualize crossovers between homologous chromatids. For accurate meiosis, chiasmata are crucial. In actuality, cells that are unable to generate chiasmata may not be able to segregate their chromosomes correctly during anaphase, leading to the production of aneuploid gametes with an aberrant number of chromosomes.
Meiotic cells begin metaphase I at the conclusion of prometaphase I. The kinetochores on sister chromatids are facing the same pole, and in this instance, in stark contrast to mitosis, pairs of homologous chromosomes line up opposite one another on the metaphase plate. On the metaphase plate, sex chromosome pairs are also aligned. The Y chromosome pairs and crosses over with the X chromosome in male humans. The X and Y chromosomes share a few minor areas of similarity near their tips, which makes these crossovers conceivable. The appropriate sex chromosomal segregation during cell division is ensured by crossover between these homologous areas.
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In meiosis l, the chromosomes form a tetrad with homologous pairs of chromosomes.
There are two processes of cell division one is meiosis and other is mitosis.
In meiosis the chromosome number gets halved and the production of four daughter cells takes place with half the number of chromosomes in each of the formed cells.
In meiosis l homologous chromosomes form pairs that results in the formation of tetrad.
Synapsis is a term used to describe the process of formation of these tetrads.
During tetrad formation homologous pairs of chromosomes exchange DNA and leads to an important phenomenon of crossing over or cross linking.
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Rachel and Lucas are at the local farmer's market and are discussing which of the many options to
purchase for their weekly grocery outing. Considering the many selections at the market, which of the
following dietary choices has the potential to extend both Rachel and Lucas's active life spans?
When retirees reach the reorientation stage, they reevaluate their alternatives and start participating in new, more gratifying activities. When retirees accept the reality of retirement and feel content in this new chapter of life, they enter a retirement routine stage.
Age-related changes in energy levels, resting metabolic rate, and physical activity can all contribute to a decrease in appetite. An Act to Establish the Law Relating to Employee Retirement Savings Plans, Employee Retirement Savings Fund Management, and Matters Incident Thereto. All workers who are engaged in the private sector on a service or apprenticeship contract, as well as contract or temporary employees of the federal, state, and local governments.
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Eating fresh fruits and vegetables has the potential to extend both Rachel's and Lucas' active life spans.
A new study confirms that certain dietary changes can increase one's life expectancy. If a person begins eating for longevity early enough, a diet rich in legumes and whole grains can add up to a decade to their life. The study includes a free, interactive online calculator that people can use to investigate the life expectancy benefits of eating specific foods. It should come as no surprise that the foods people eat have a significant impact on their health. It's one thing to have a general idea of what to eat for health, but the wealth of available information can be overwhelming.
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Imagine that a cell is produced with only a single phospholipid layer (instead of a bilayer). How would this change in structure impact the cell's function? Explain.
What does a phospholipid bilayer do for a cell?
If only one layer was present, how would that change this function?
If only one phospholipid layer is present in the cell membrane instead of a bilayer, movement of the substance will be possible only in one direction.
What is a cell membrane?All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
Two phospholipid layers make up the lipid bilayer, a form of a membrane that isolates the cell from its surroundings.
If only one layer was present, the movement of direction will be possible only in one direction.
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You eat a piece of toast. Using the information you gained about the breakdown of starch, write a complete description of what happens to the molecules of starch in this toast as your body digests the toast. Include information about the starch, subunits, water, and enzymes
When we consume a piece of toast, the alpha amylase enzyme in our mouths converts the starch in it into maltose.
Later, gastrointestinal enzymes in our small intestine further break down these maltose units into smaller units of glucose to make digestion easier.
The simplest type of carbohydrate, glucose, is broken down into multiple subunits to form starch, a polysaccharide.
In order to break down starch, a number of enzymes, including amylase, maltase, and oligo 1,6 glucosidase, must first function in the mouth before moving on to the gastrointestinal tract.
A polysaccharide or complex carbohydrate is starch. It cannot be absorbed in its polymer state because of the many sugars that are bonded together. The connections holding the polysaccharide together must therefore be broken by the digestive system. The body can then absorb the monosaccharide sugar molecules at that point.
Mechanical digestion takes place initially in the digestive process. By increasing the food's surface area by tooth grinding, enzymes will have an easier time breaking down the macromolecules.
Saliva contains an enzyme called amylase, which starts the breakdown of starch. However, keep in mind that food does not stay long in the mouth and that enzymes are extremely pH-sensitive. The amylase will be worthless in the stomach's acidic environment once it has been swallowed and transferred there. The starch cannot be completely digested in this amount of time.
The meal mixture, known as chyme, enters the duodenum after leaving the stomach (first portion of the small intestine). Trypsinogen, a proenzyme that the pancreas secretes, is essentially a dormant form of trypsin (an enzyme that digests proteins and not starch). Trypsin, however, can also activate other gastrointestinal enzymes once it has been activated. Amylase is one of those. Following the activation of amylase, starch will eventually be broken down into monosaccharides and absorbed into the bloodstream.
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When we eat a piece of toast, the starch present in it is broken down into maltose in our mouth cavity using alpha amylase enzyme.
Later these maltose units are further broken down into smaller units of glucose in our small intestine by gastrointestinal enzymes facilitate the process of easy digestion.
Starch is a polysaccharide which is made up of several subunits of the simplest type of carbohydrate, that is glucose.
Starch breakdown occurs through a series of steps initially from mouth unto gastrointestinal tract and this takes into account the functioning of several enzymes like amylase, maltase and oligo 1,6 glucosidase.
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A genotype resulting from the inheritance of two different alleles from your parents. Gene. Section of a chromosome that codes for a single protein. Linked Genes. Genes that are likely inherited together due to their physical proximity. Dominant. Overshadows the other allele in the heterozygous state.
A genotype is the combination of alleles inherited from our parents. Alleles are the different forms of genes, which are sections of a chromosome that code for a single protein.
Genes can be linked, meaning they are likely inherited together due to their physical proximity. When it comes to inheritance, one allele can be dominant, meaning it overshadows the other allele in the heterozygous state.
An example of this is the gene that codes for eye color, where the brown allele is dominant over the blue allele. Having two different alleles for a particular gene results in a genotype that is a combination of the two alleles. This can be seen in the example of eye color, where two blue alleles will result in blue eyes and a blue and brown allele will result in brown eyes.
In conclusion, a genotype is a combination of two different alleles inherited from our parents, where one allele can be dominant over the other.
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If the ecosystem is destroyed what would happen to the organisms in the ecosystem?
Food shortage as the lands become barren and the oceans become fishless. Loss of biodiversity as whole species of living things disappear due to deforestation. Might go extinct
the system that maintains the human species from generation to generation is the system. True or False
True, the system that maintains the human species from generation to generation is the reproductive system.
The system that maintains the human species from era to generation is the reproductive system. This device is responsible for producing male and woman gametes.
The reproductive system is an organ system via which people produce male (sperm) and female (ovule) gametic cells.
Male and female gametes fuse at some point of fertilization to supply a diploid zygote that develops into an grownup person.
In ladies, the reproductive system is composed of the ovaries, uterus, fallopian tubes, cervix, and vagina.
In guys, the reproductive system includes the testes, prostate, and malepart.
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It is true that the reproductive system is what keeps the human race alive from generation to generation.
The reproductive system is the mechanism that preserves the human species from generation to generation. This mechanism is in charge of generating both male and female gametes. People create male (sperm) and female (ovule) gametic cells through their reproductive system, which is an organ system.
At some point during fertilization, the male and female gametes combine to create a diploid zygote, which grows into an adult. The ovaries, uterus, fallopian tubes, cervix, and vagina make up a woman's reproductive system. Testes, the prostate, and the male portion make up the male reproductive system in men.
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a rooster with grey feathers is crossed with a hen of the same phenotype. they produce 15 chicks with grey feathers, 7 chicks with black feathers, and 8 chicks with white feathers.
a rooster with gray feathers is crossed with a hen of the same phenotype. They produce 15 chicks with gray feathers, 7 chicks with black feathers, and 8 chicks with white feathers.
The process by which genes are passed from one generation to the next is known as inheritance. These genes can be combined in a variety of ways to give an organism its distinct traits.
Inheritance thus determines the traits of all living things. Some features are controlled by a single gene, whereas many others are controlled by the interactions of two or more genes.
Partial dominance
A modified version of Mendel's dominance principle is known as incomplete dominance. A sort of intermediate heterozygote is produced as a result of the phenomenon or gene interaction in which dominant and recessive alleles both express and have their intended phenotypic effects.
The presence of gray-colored roosters that give rise to three different phenotypes indicates that black is not entirely dominant in the given situation and cannot totally counteract the effect of white. Phenotypes would be binary if total dominance existed.
However, inadequate dominance is explained by the existence of gray-colored heterozygotes. In incomplete dominance, the phenotypic ratio is 1:2:1. (7 black,15 gray, and 8 white).
The Punnett square method predicts that a cross between a gray rooster and a black hen will result in offspring with a gray and black phenotype.
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A rooster with gray feathers and a hen of the same phenotype produce 15 gray, 6 black, and 8 white chicks. What is the simplest explanation for the inheritance of these colors in chickens? What phenotypes would you expect in the offspring of a cross between a gray rooster and a black hen?
This adaptation takes place when the gray feathers are dominant while the white and black feathers are recessive in nature.
When the gray feather rooster is crossed with a hen of the same phenotype. The offspring will display a ratio of 3:1 of gray to black and white feathers, similar to what was observed.
Rooster and hen both possess a gene for the gray feathers but it is possible that rooster may also possess a gene for black feather and the hen may contain a gene for white feathers.
And this hereby explains the adaptation of the phenomenon that 15 chicks are with gray feathers, 7 chicks with black feathers and 8 chicks with white feathers.
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A bumed body is found after a warehouse fire. Investigators cannot obtain nuclear DNA suitable for testing, but they are able to obtain a sample of the person's mtDNA
What challenge wil they encounter when trying the identify the person using mtDNA?
Everyone has the same mtDNA so investigators wont be able to narrow identity down.
Generally, mtDNA is most useful for information on traits like hair color so it wont narrow things down much
It is time consuming and expensive to use mtDNA and not al labs have the capabilities to test this
As mtDNA only shows patrilineal lineage, it will only show the father's mtDNA
Everyone has the same mtDNA so investigators won't be able to narrow identity down.
Mitochondrial DNA (mtDNA) has many special functions together with a excessive copy wide variety in cell, maternal inheritance, and a high mutation fee which have made it attractive to scientists from many fields.
Forensics. Nuclear DNA is referred to as the molecule of lifestyles and consists of the genetic instructions for the development of all dwelling organisms. it is found in nearly each cellular inside the human body, with exceptions along with pink blood cells. every body has a unique genetic blueprint, even identical twins.
In black burnt bones the DNA turned into enormously degraded and in some instances no nuclear DNA changed into left, leaving mitochondrial DNA evaluation as an option.
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The person's mtDNA can be sampled, but the investigators are unable to get nuclear DNA that is testable. What obstacles will they run against while attempting to use mtDNA to identify the person.
Investigators won't be able to determine an individual's identify because everyone has the same mtDNA. The nuclear genome is linear, while the mitochondrial genome is circular. The nuclear genome has 3.3 billion DNA base pairs, whereas the mitochondrial genome has 16,569 DNA base pairs. There are 37 genes in the mitochondrial genome, which together code for 13 proteins, 22 tRNAs, and 2 rRNAs. You have two copies of each chromosome because your nuclear DNA, which is made up of genetic material from both your parents, contains pairs of chromosomes.
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