Polygenes are a group of genes that are involved in the expression of a single trait and are located at different positions on different chromosomes. The first statement, which claims that polygenes are located on the same chromosome, is false.
Polygenes cannot be used to predict the genotype of progeny. Instead, they contribute to the phenotype of the individual. The second statement is false.The third statement is true. Polygenes are responsible for a range of continuous variation in quantitative traits such as height, weight, and skin color, among others. The variation in these traits is caused by the interaction of several genes at different locations, with each gene contributing a small effect.Polygenes are not capable of maintaining any genotype. While they play an important role in the expression of traits, they do not determine the genotype of an individual. Therefore, the fourth statement is false.To sum up, polygenes are a group of genes located at different positions on different chromosomes that interact to produce continuous variation in quantitative traits. However, they do not predict the genotype of progeny or maintain any genotype.
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during conjugation, the donor cell generally retains a copy of the genetic material being transferred. this is termed a blank process
Answer:
Conservative
Explanation:
During conjugation, the donor cell generally retains a copy of the genetic material being transferred. This is termed a conservative process.
in humans, telomerase activity is most likely to be found in which cells? select one: red blood cells germ cells muscle cells all cells neurons
Telomerase activity in humans is most likely to be found in germ cells. The correct answer is b.
Telomerase is an enzyme that adds nucleotides to the ends of chromosomes to prevent them from becoming shorter after every division of the cell. This enzyme is found in some cells, particularly embryonic stem cells, adult stem cells, and cancer cells.
Germ cells are responsible for the creation of sperm and eggs in males and females, respectively. Germ cells are crucial to reproduction, and their genetic makeup is passed on from one generation to the next. When germ cells divide, they undergo many more cycles than other cell types.
As a result, they are more likely to experience telomere shortening, which is why telomerase activity is more common in these cells.
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what was the control group in this study? a the transplanted population in the killifish pools b the transplanted population in the pike-cichlid pools c the source population in the killifish pools d the source population in the pike-cichlid pools
In an ecological study involving killifish and pike-cichlid pools, the control group is the source population in the pike-cichlid pools as it did not receive any intervention in the study.
In a study, the control group refers to the group that does not receive any treatment or intervention and is used as a comparison to the experimental group. In this scenario, the source population in the pike-cichlid pools is the control group as it did not receive any intervention in the study. The study is not mentioned in the question, but based on the options provided, it is likely an ecological study involving killifish and pike-cichlid pools. The transplanted population is most likely the experimental group. The source population in the killifish pools and the source population in the pike-cichlid pools are both control groups that did not receive any intervention in the study.
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imagine a condition where the vessels that carry blood between the lungs and the body tissues were permeable to oxygen. what would you expect to observe relative to the normal condition of low permeability to oxygen in the vessels that carry blood from the lungs to the tissues?
If the vessels between the lungs and body tissues were permeable to oxygen, there will be a decrease in the oxygen supply to the body tissues.
Normally, oxygen-poor blood from the body tissues flows into the right side of the heart, and is then pumped to the lungs where it picks up oxygen and releases carbon dioxide. The oxygen-rich blood then flows back to the left side of the heart, where it is pumped out to the body tissues to supply oxygen to the cells.
If the vessels between the lungs and body tissues were permeable to oxygen, oxygen-rich blood from the lungs would flow into the right side of the heart, mix with oxygen-poor blood from the body tissues, and then be pumped out to the body tissues.
This would result in a reduced delivery of oxygen to the tissues, as some of the oxygen-rich blood from the lungs would bypass the body tissues and flow back to the lungs.
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Which of the following is NOT found in saliva? A) urea and uric acid. B) electrolytes. C) lysozyme. D) protease. D) protease.
Proteases enzyme is not found in saliva , hence option 'D' is correct
The natural execration occurs from salivary gland, thus it accounts for high concentration of urea and uric acid found in saliva. Since the amount of creatinine production is consonant in 24 hours , uric acid and urea -to- creatinine ratio are better to clarify the changes of this compound concentration in saliva . Therefore option A is incorrect.
The main inorganic components are sodium , potassium, chloride, calcium, phosphate , and bicarbonate , all contributing to the ionic strength of saliva. Therefore option B is incorrect.
As an important part of the non specific immune defense mechanism , lysozyme is an important component of antibacterial in saliva. Therefore option C is incorrect.
Proteases are released by pancreas into the proximal small intestine ,where the mix with proteins already denatured by gastric secretion's and break down into amino acids. Therefore option "D" is correct.
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describe the zones of the epiphyseal plate and their functions, and the significance of the epiphyseal line.
The epiphyseal plate, also known as the growth plate, is composed of four zones: the resting zone, the proliferative zone, the hypertrophic zone, and the calcified zone. The epiphyseal line, or growth line, is the division between the epiphyseal plate and the diaphysis and is where all growth stops.
The resting zone is the first zone in the epiphyseal plate and is located at the epiphyseal side of the plate. It contains cells that are inactive but can divide to form more chondrocytes, which are essential for the formation of bone and cartilage.
The proliferative zone is the second zone and is the site of cell division and growth.
The hypertrophic zone is the third zone and is the site of most growth. It is also the site of most of the extracellular matrix mineralization, as chondrocytes in this zone produce high levels of collagen and other matrix proteins.
The calcified zone is the fourth and last zone and is composed of cells that are no longer able to divide or grow. It contains mature, mineralized cartilage.
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What is the average for the following set of measurements?
7.1 g, 9.8 g, 2.3 g, 8.5 g, 7.4 g, 5.7 g
A. 9.8 g
B. 6.8 g
C. 8.2 g
• D. 40.8 g
Answer:
6.8g
Explanation:
All numbers are added together and you divide the total but the amount of numbers given.
All numbers added equals to 40.8
Numbers given equals 6
40.8 divided by 6 equals 6.8
the ability to predict the consequence of an action is located in the group of answer choices gustatory cortex. olfactory receptors. left cerebral hemisphere. prefrontal cortex. right cerebral hemisphere.
The prefrontal cortex is where one can forecast how an action will have an effect.
What area of the brain is in charge of anticipating the outcomes of events or actions?A wide range of executive processes are supported by the prefrontal cortex, including: concentrating one's thoughts. anticipating environmental events and anticipating the results of one's actions.
Which region of the brain is in charge of consciousness?The main component of the forebrain, the cerebrum, is the brain (or prosencephalon). The cerebral cortex, which is its dominant outer region, processes sensory and motor information as well as enabling consciousness, or our capacity to think about ourselves and the outside world.
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during the menstrual cycle, what triggers ovulation to occur? question 23 options: a gradual decrease in estrogen levels. inhibin b sharply spikes. a surge in progesterone occurs. activin is released.
Ovulation is triggered by a surge in progesterone which occurs during the menstrual cycle.
This surge is caused by the follicle stimulating hormone, which is produced by the pituitary gland. The FSH encourages the growth of follicles in the ovaries, which produce estrogen. As the follicle matures, estrogen levels peak. The peak in estrogen causes the brain to secrete luteinizing hormone, which triggers the follicle to rupture and release an egg (ovulation). Activin, inhibin B, and a gradual decrease in estrogen levels are all part of the process that precedes and follows ovulation. Activin is a hormone secreted by the ovaries, which helps to mature follicles.
Inhibin B is a hormone secreted by the ovaries, which is thought to help control the amount of FSH in the body and in turn the number of follicles that mature. A gradual decrease in estrogen levels occurs as ovulation approaches and during the luteal phase of the menstrual cycle. This decrease in estrogen helps to prepare the body for the next menstrual cycle.
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transport of a solute across a membrane where the solute is going up its concentration gradient and using protein carriers driven by the expenditure of chemical energy, is known as
Transport of a solute across a membrane where the solute is going up its concentration gradient and using protein carriers driven by the expenditure of chemical energy is known as active transport.
What is active transport?Active transport is the movement of molecules against the concentration gradient, which means moving from lower to higher concentrations. It involves a direct energy source (ATP) to drive the movement of molecules. The active transport method involves the use of protein pumps to move molecules across the cell membrane. These pumps can help move molecules, including sodium, calcium, and potassium, against the concentration gradient, which allows the cell to regulate what enters and exits. During active transport, the cell must use energy in the form of ATP to transport the molecules.
In summary, the transport of a solute across a membrane, where the solute is going up its concentration gradient and using protein carriers driven by the expenditure of chemical energy, is known as active transport. Active transport requires energy, which is provided by the hydrolysis of ATP. Active transport is necessary because it allows the cell to maintain its internal environment despite the external environment's changes.
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6. What type of body blan do sponges have?
A. Cephalization
B.asymmetry
C.bilateral symmetry
D.radial symmetry
The Option B is correct. The body blan have the assymetry types of sponges in them
What are sponges?Sponges (Phylum Porifera) are a type of aquatic animal that lack true tissues and organs. They are considered the simplest of all animals and do not have a body plan based on symmetry.
Instead, sponges exhibit a type of symmetry known as "asymmetry," which means they have no plane of symmetry or any organization of body parts around a central axis. Therefore, the correct answer is B. asymmetry.
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leucine aminopeptidases (laps) are found in all living organisms and have been associated with the response of the marine mussel, mytilus edulis, to changes in salinity. laps are enzymes that remove n-terminal amino acids from protein
Leucine aminopeptidases (LAPs) are a group of enzymes found in all living organisms, including the marine mussel Mytilus edulis. These enzymes play a crucial role in protein metabolism by catalyzing the cleavage of N-terminal amino acids from protein substrates.
LAPs have been implicated in a variety of physiological processes, including protein turnover, regulation of peptide hormone levels, and immune system function. In Mytilus edulis, LAPs have been shown to play a role in the organism's response to changes in salinity. When the salinity of their environment changes,
Mytilus edulis utilizes LAPs to modify the composition of proteins in their cells, allowing them to better adapt to the changing conditions. This adaptation is important for the organism's survival, as changes in salinity can significantly affect the functioning of cells and tissues.
Overall, LAPs are versatile enzymes that play a critical role in protein metabolism and are found in a wide range of living organisms, including the marine mussel Mytilus edulis. Their ability to modify protein substrates makes them important players in many physiological processes, including adaptation to changing environmental conditions.
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you have discovered a new kind of cell with a strange new organelle that contains a highly hydrophobic compartment. which will mostly certainly be abundant in this organelle?
The new organelle that you discovered with a highly hydrophobic compartment will most likely contain lipids, such as fatty acids and phospholipids, as they are hydrophobic molecules.
Which molecule will mostly certainly be abundant in this organelle?There are a number of molecules that will most certainly be abundant in an organelle that contains a highly hydrophobic compartment. In the context of biochemistry, the most abundant molecule is usually the one that is most soluble in the organelle's environment.
According to a number of theories, lipids are most likely to be the most abundant molecules in an organelle containing a highly hydrophobic compartment. Lipids are a diverse class of molecules that are primarily defined by their solubility characteristics. Lipids are soluble in organic solvents and insoluble in water, which means they are ideal for forming membranes, which are hydrophobic compartments.
Therefore, lipids will most certainly be abundant in an organelle that contains a highly hydrophobic compartment.
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the provided structure is an aldehyde substrate derivative that specifically inhibits elastase. which elastase active site residue forms a covalent bond with the aldehyde inhibitor?
The aldehyde substrate derivative that specifically inhibits elastase forms a covalent bond with a serine residue in the active site of elastase.
Aldehydes are a class of organic compounds that have a carbonyl group at the end of their carbon chains, denoted as -CHO. Aldehydes have a polar carbonyl group and a nonpolar hydrocarbon region, making them highly reactive. Aldehydes are classified as primary, secondary, or tertiary based on the degree of substitution of the carbon atom attached to the carbonyl group. Elastase is a serine protease enzyme that breaks down elastin, a major protein component of connective tissue in the body, resulting in the disassembly of elastic fibers. Elastase is secreted by neutrophils, monocytes, macrophages, and fibroblasts, among other cells. It plays a vital role in wound healing and inflammation. The aldehyde inhibitor binds to the active site of elastase and forms a covalent bond with a serine residue. The serine residue is part of the catalytic triad (His, Asp, and Ser) that aids in the breakdown of peptide bonds. The covalent bond formed between the aldehyde inhibitor and the serine residue in the elastase active site is irreversible, resulting in enzyme inhibition. Therefore, the serine residue forms a covalent bond with the aldehyde inhibitor.Learn more about aldehyde: https://brainly.com/question/17101347
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How is a substitution mutation different from a frameshift mutation? Which one is likely to be more dangerous to an organism? Why?
Answer:
A substitution mutation is a type of genetic mutation where one base pair in the DNA sequence is replaced with a different base pair. This can result in a change in the amino acid sequence of the protein that is translated from the DNA sequence. If the substitution mutation occurs in a non-coding region of the DNA, it may not have any effect on the organism.
On the other hand, a frameshift mutation is a type of genetic mutation where one or more base pairs are inserted or deleted from the DNA sequence. This can shift the reading frame of the DNA sequence, changing the way that the sequence is translated into amino acids. This can result in a completely different protein being produced, or a protein that is missing critical parts or has extra parts that don't function properly.
In general, frameshift mutations are likely to be more dangerous to an organism than substitution mutations. This is because frameshift mutations can result in a completely different protein being produced, or a protein that is missing critical parts or has extra parts that don't function properly. This can have a significant impact on the function of the protein, which can in turn impact the health and survival of the organism. Substitution mutations, on the other hand, may result in a change to a single amino acid in the protein, which may or may not have a significant impact on its function.
However, it is important to note that the impact of a mutation on an organism depends on a variety of factors, including the location of the mutation, the function of the protein that is affected, and the specific genetic and environmental context in which the organism exists. Therefore, it is not always the case that frameshift mutations are more dangerous than substitution mutations, and the impact of a particular mutation must be evaluated on a case-by-case basis.
In the same mouse species, a third unlinked gene (gene C/c) also has an epistatic effect on fur color. The presence of the dominant allele C (for color), allows the A/a and B/b genes to be expressed normally. The presence of two recessive alleles (cc), on the other hand, prevents any pigment from being formed, resulting in an albino (white) mouse.Matchthe phenotypes on the labels at left to the genotypes listed below. Labels can be used once, more than once, or not at all.agoutisolid colorsolid coloragouti blackalbinoAaBbccAaBBCCAabbccAAbbCcaaBbCcAABBcc
The phenotype "agouti" would be matched with the genotype AaBb, "solid color" with the genotype AaBB or Aabb, "black" with the genotype AABB or AABb, and "albino" with the genotype cc. This is because the presence of the gene C/c (epistasis) determines the fur color of the mouse, and the genotypes above show the different combinations of alleles. If two recessive alleles (cc) are present, it will result in an albino (white) mouse.
Explanation:
Physical characteristics like the fur color of a mouse are determined by the combination of genes in the organism's DNA. Epistasis is a phenomenon in which the expression of one gene affects the expression of another gene. When an organism reproduces, genes are inherited by offspring from their parents. In the context of this problem, the genes involved in determining fur color are A/a, B/b, and C/c. C is the gene that has an epistatic effect on fur color.
Here, are the matched genotypes with phenotypes: AaBbcc - agouti solid colorAaBBCC - solid colorAgouti black - AAbbCc, AaBbCcAlbino - aabbcc, aabbCc, aabbCC, aaBbcc, aaBbCc, aaBBcc.The label agouti solid color matches with the genotype AaBbcc. The solid color matches the genotype AaBBCC. The label agouti black matches with the genotypes AAbbCc and AaBbCc. The label albino matches with the genotypes aabbcc, aabbCc, aabbCC, aaBbcc, aaBbCc, and aaBBcc.
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on the cellular level, how is gastrulation accomplished in echinoderms, amphibians, and birds? in general terms what does gastrulation accomplish?
Gastrulation in echinoderms, amphibians, and birds is accomplished through the invagination of different cells.
In general, gastrulation is the process that reorganizes cells to form the three germ layers, which are necessary for the further development of an organism.
Gastrulation is the process in which cells rearrange to form the three germ layers: the ectoderm, mesoderm, and endoderm.
In echinoderms, gastrulation is accomplished through the process of archenteron formation, which is when the mesoderm forms from the invagination of cells from the surface of the embryo.
In amphibians, gastrulation is accomplished through blastopore closure, which is when the opening at the blastula stage of the embryo closes.
In birds, gastrulation is accomplished through the formation of the primitive streak, which is when the ectoderm folds and inwards to form a groove-like structure.
In summary, gastrulation is the first step of morphogenesis, the development of form and structure, which will determine the shape of the organism. The three germ layers will further differentiate and develop into the organs, tissues, and cells that make up the organism.
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What are the main functions of the ear? Please respond in 1-2 complete sentences
using your best grammar.
Hearing, Balance and equilibrium: The ear is also very important for keeping your balance and equilibrium, which is important for your posture, movement, and sense of where you are in space.
Pressure regulation: The Eustachian tube, which connects the middle ear to the back of the throat, is opened and closed by the ear. This helps keep the pressure in the middle ear at the right level.
Protection: Hair and wax line the ear canal, which helps keep dust, dirt, and other foreign particles from getting into the ear's delicate structures.
Temperature regulation: When the temperature outside changes, the ear responds by widening or narrowing the blood vessels in the ear.
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meiosis divides one cell into four cells, but the resulting cells have half the amount of dna as compared to the original cell. how do you think this is possible?
During meiosis, one cell is divided into four cells, but the resulting cells have half the amount of DNA as compared to the original cell. This is because of the two cell divisions, meiosis I and meiosis II, that occur during meiosis.
During meiosis I, homologous chromosomes separate, resulting in two cells with half the number of chromosomes as the original cell.
During meiosis II, sister chromatids separate, resulting in four cells, each with half the number of chromosomes as the original cell.
In other words, the resulting cells have half the amount of DNA because meiosis results in four cells, each containing half the number of chromosomes and, therefore, half the amount of DNA as the original cell.
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Predict A store owner has a problem with birds building nests on top of the store’s
outdoor sign. To scare the birds away, she places rubber snakes on top of the sign.
Predict how the birds will react to the rubber snakes. Use the terms habituated,
learn, negative effects, positive effects, and stimulus in your answer.
Answer:
The birds may initially be frightened by the rubber snakes due to the sudden presence of a new stimulus. However, if they do not encounter any negative effects, such as being attacked or injured by the snakes, they may quickly habituate to their presence and no longer see them as a threat. This means that the birds may learn that the rubber snakes are not a danger and may continue to build their nests on the sign, ignoring the presence of the snakes. Therefore, the use of rubber snakes may have no positive effects in deterring the birds from building their nests, but rather may be ineffective or even have negative effects if the birds become habituated to them.
Explanation:
This is what I think hope it helps.
having multiple crossovers between two genes that are far apart, and that result in the original arrangement being passed on, cause what?
When a large number of crossovers between two genes that are far apart, and that result in the original arrangement being passed on, it causes linkage disequilibrium.
What is the meaning of linkage disequilibrium?Linkage disequilibrium is a term used to describe a statistical correlation between alleles at various loci within a chromosome or between chromosomes that deviates from random associations. When alleles from various loci are inherited together more often than expected from random allele frequency distributions, this is referred to as linkage disequilibrium.
To summarize, if there are multiple crossovers between two genes that are far apart, and the original arrangement is passed on, it causes linkage disequilibrium.
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procaine (novocaine) is metabolized primarily by the group of answer choices liver. lungs. plasma. kidneys.
Answer: plasma
Explanation:
the red portion of the human lip: question 12 options: integumentary lip. has no facial markings. must be treated by hypodermic tissue building in every case. mucous membrane.
The red portion of the human lip is known as the mucous membrane. It does not have any facial markings and must be treated by hypodermic tissue building in every case.
The mucous membrane is a layer of tissue that lines various parts of the body's openings and cavities that are in contact with the outside environment. It is a moist membrane that secretes mucus, a slimy substance that assists in trapping germs and other foreign substances, as well as keeping the surface moist.
The red portion of the human lip: Mucous membrane. The red portion of the human lip is the mucous membrane. The mucous membrane of the lips is often known as the vermilion zone. It is a transition zone between the skin and the mucous membrane.
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a gardener would like to grow a lemon tree from a lemon. what is the first thing he should do?
If a gardener wants to grow a lemon tree from a lemon, the first thing he should do is to remove the seeds from the lemon to germinate.
A gardener who wants to grow a lemon tree from a lemon should follow a series of steps. These steps are as follows:
Step 1: Remove the seeds from the lemon. The seeds should be washed and cleaned with water. The gardener should be careful not to damage the seeds.
Step 2: Prepare the soil. The soil should be well-draining, rich in nutrients, and have a pH of 5.5 to 6.5. The gardener can mix sand, perlite, and vermiculite to the soil to increase its drainage.
Step 3: Plant the seeds. The gardener should plant the seeds about 1 inch deep into the soil. The soil should be moist but not waterlogged.
Step 4: Cover the pot with a plastic bag or a plastic wrap to create a greenhouse effect.
Step 5: Place the pot in a warm and sunny location. The temperature should be around 70 degrees Fahrenheit.
Step 6: Water the soil regularly. The soil should be kept moist but not waterlogged.
Step 7: Wait for the seeds to germinate. It may take a few weeks to a few months for the seeds to germinate.
Step 8: Once the seedlings have grown big enough, they can be transplanted into a bigger pot. The plant should be kept in a warm and sunny location. The soil should be kept moist but not waterlogged.
Step 9: The lemon tree should be fertilized with a citrus fertilizer every two weeks during the growing season.
Step 10: The lemon tree should be pruned regularly to remove dead, damaged, or diseased branches.
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Please help quick I’ll mark brainly
Why does the Northern hemisphere produce more CO2 overall? Why does it absorb more CO2 certain times of year?
Answer:
The Northern Hemisphere produces more CO2 overall for several reasons. One main reason is that it contains more land area and therefore more vegetation that undergoes photosynthesis, which takes in CO2. However, during the winter months, when the temperature drops, the vegetation goes dormant and stops absorbing CO2. At the same time, human activity, such as burning fossil fuels and heating buildings, tends to increase during the winter months, which leads to an increase in CO2 emissions. As a result, the Northern Hemisphere experiences seasonal variations in CO2 levels, with higher levels during the winter months and lower levels during the summer months when vegetation is actively growing and absorbing CO2. Additionally, the Northern Hemisphere experiences more seasonal variation in general, with more extreme temperatures and weather patterns that can affect the balance of CO2 in the atmosphere.
up to 25% of a cell's atp is used to run sodium-potassium pumps. without the resulting sodium and potassium gradients, neurons and muscles cannot fire properly. if a person is poisoned with cyanide, they cannot generate atp, and die within a few minutes. in relation to the sodium-potassium pump, what specific impact would cyanide have on concentrations across the cell membrane?
Cyanide depolarizes the peritubular cell layer by +18.8 +/ - 2.3 mV/10 min in the presence and by +4.5 +/ - 0.9 mV/10 min without even a trace of the luminal substrate.
Hydrogen cyanide is a poisonous little nonpolar particle that is delivered by certain plants to discourage herbivores. Cyanide crosses layers and restrains a critical cycle in the breath.
The cyanide particle, CN, ties to the iron molecule in cytochrome C oxidase in the mitochondria of the cells and goes about as an irreversible protein inhibitor. This keeps cytochrome C oxidase from doing what it needs to do, which is to send electrons to oxygen in the electron transport chain of high-impact cell breath.
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Help with my biology please
Carbohydrates are composed of monosaccharides, proteins are composed of amino acids, and nucleic acids are composed of nucleotides.
What are the elements present and the building blocks in carbohydrates, proteins, and nucleic acids?Carbohydrates, proteins, and nucleic acids are three major classes of biomolecules that are essential for life.
Here are the elements present and the building blocks of each:
Carbohydrates:
Carbohydrates are organic molecules that contain carbon, hydrogen, and oxygen in the ratio of 1:2:1. The building blocks of carbohydrates are monosaccharides, which are simple sugars that cannot be broken down into smaller molecules. Examples of monosaccharides include glucose, fructose, and galactose.
Proteins:
Proteins are complex molecules that are made up of amino acids. Amino acids contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. There are 20 different types of amino acids, and they are joined together by peptide bonds to form polypeptide chains, which fold into specific three-dimensional structures to form proteins.
Nucleic acids:
Nucleic acids are macromolecules that store and transmit genetic information. They are composed of nucleotides, which are made up of a nitrogenous base, a sugar, and a phosphate group. The four nitrogenous bases in DNA are adenine, guanine, cytosine, and thymine, while in RNA, uracil replaces thymine. The sugar in DNA is deoxyribose, while in RNA, it is ribose. The nucleotides are joined together by phosphodiester bonds to form a linear chain called a polynucleotide.
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Subject: Science
1. Approximately how far away would the formation of Earth be if you used the scale from your timeline?
2. Which events helped life develop on Earth? ''Explain''.
Because several meteorites have been dated, the Earth's age has increased from 4.55 0.3 billion years in 1956 to 4.55 0.02 billion years. I) The synthesis of nucleotides and amino acids.
How did life on Earth start to appear?In rocks that are 3.7 billion years old, the oldest known life forms, microbes, have left their imprint. The signals were made up of a specific class of carbon molecules produced by living things.
What process created the Earth?Formation. Over a period of 4.5 billion years, whenever the solar system was still in its current configuration, the second planet from the Sun—Earth—was created when gravity drew spinning gas and dust in. Earth has a solid crust, a high degree of crystallinity, and a central core, just like its sibling terrestrial planets.
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Where are the olfactory filaments found?
Answer:
nasal cavity
Explanation:
Olfactory filaments
The bipolar cell is the first-order sensory neuron located at the olfactory mucosa on the roof of the nasal cavity, immediately inferior to the cribriform plate of the ethmoid bone. This cell is analogous to the sensory cells of spinal nerves, whose cell bodies reside in the dorsal root ganglion.
PLSSSS HELP IF YOU TURLY KNOW THISSS
Which type of cloud is very close to the earth's surface?
FogThe altostartus clouds are found in the upper troposphere
The cirrus clouds are found in the troposphere
The cumulonimbus clouds are found in the lower troposphere...