Answer: CELL MEMBRANE
a cross of 2 sweet pea plants with white flowers results in f1 plants with wild type purpleflowers. purple flowers are dominant and white flowers are recessive. how many genes are involved in this cross?
Two genes are involved in the cross of two sweet pea plants with white flowers that results in F1 plants with wild type purple flowers.
Every character of sweet pea flowers is decided by two different genes; one for flower color and the other for position.
In the F1 generation, two alleles for each gene are present, and they pair up to create two kinds of individuals. One kind of individual has both dominant alleles, and the other has both recessive alleles. In this case, the dominant alleles are PP and the recessive alleles are pp. In other words, the purple flowers have two dominant alleles (PP), whereas the white flowers have two recessive alleles (pp).
Therefore, this cross involves two genes.
Learn more about F1 generation at https://brainly.com/question/25280953
#SPJ11
who hollowed out logs to make simple canoes which they used to cross rivers and to fish in deep water? question 10 options: australopithecines homo sapiens cro-magnons neanderthals
The group of humans who hollowed out logs to make simple canoes which they used to cross rivers and to fish in deep water were the Neanderthals.
Neanderthals were ancient humans who lived in Europe and parts of Asia from about 400,000 to 40,000 years ago. They lived during the late Pleistocene period, which was a time of extreme cold and ice ages. Neanderthals were shorter and stockier than modern humans, with a larger brain and a protruding brow ridge. They were well-adapted to the cold climate, with large nasal passages to warm the air they breathed and a robust build to conserve heat.
Neanderthals are known for their impressive tool-making skills and were skilled hunters of large game animals such as mammoths and bison. They also used fire and made simple shelters to protect themselves from the cold weather. Neanderthals also made simple canoes by hollowing out logs which they used to cross rivers and to fish in deep water. Neanderthals were the first humans to use boats and watercraft, and this innovation allowed them to explore new areas and find food in places that were previously inaccessible.
Learn more about Neanderthals at:
https://brainly.com/question/1182138
#SPJ11
how does the structure of dna encode genetic information? the structure of the bases the sequence of bases the sequence of amino acids the number of nucleotides in a dna molecule
The structure of DNA encodes genetic information through the sequence of bases. The correct option is the sequence of bases.
The structure of DNA is a double-stranded helix. The nucleotide monomers are the building blocks of this structure. The phosphate, sugar, and nitrogenous base are the three main components of each nucleotide monomer. The helix is formed by the sugar-phosphate backbones of the two strands, which are held together by hydrogen bonds between the nitrogenous bases.
A genetic code is a system of rules that governs the translation of information encoded in genetic material into proteins. During the replication process, the sequence of nucleotides in a DNA molecule determines the sequence of amino acids in a protein. DNA replication is a process that produces two identical copies of a DNA molecule. The mechanism of DNA replication is accomplished by a collection of enzymes that work together to copy the DNA sequence. DNA replication occurs in three stages: initiation, elongation, and termination.
Learn more about genetic code at https://brainly.com/question/16914106
#SPJ11
Three different examples of inheritance are shown.
Part A:
One of the offspring from Example 3 self-crosses. First, determine the genotype of the offspring. Using the genotype, which Punnett square correctly predicts the cross?
A
The Punnett square shows a pink flower (C-R-C-W) crossed with a pink flower (C-R-C-W). One offspring has C-R-C-R genotype, two offspring have the C-R-C-W genotype, and one offspring has the C-W-C-W genotype.
B
The Punnett square shows a pink flower (C-R-C-W) crossed with a pink flower (C-R-C-W). All four offspring have the C-R-C-W genotype.
C
The Punnett square shows a pink flower (C-R-C-R) crossed with a pink flower (C-W-C-W). All four offspring have the C-R-C-W genotype.
D
The Punnett square shows a pink flower (C-R-C-R) crossed with a pink flower (C-W-C-W). Two offspring have the C-R-C-R genotype and two offspring have the C-W-C-W genotype.
Part B:
Which BEST describes the phenotype of the offspring created by the choice in Part A?
A
The cross will result in genotypes for 4 pink flowers.
B
The cross will result in genotypes for 4 red flowers.
C
The cross will result in genotypes for 2 red flowers and 2 white flowers.
D
The cross will result in genotypes for 1 red flower, 2 pink flowers, and 1 white flower.
The answer chooses for part A are attached below
Incomplete dominance is the situation where the phenotype of the heterozygous phenotype is distinct from and often intermediate to the phenotypes of the homozygous phenotypes.
According to this question, three different examples of inheritance are shown in the above image. The example 3 depicts incomplete dominance where pink-flowered offsprings are produced from the cross between a red and white flowered parents.
If two of the pink offsprings self crosses i.e. CRCW × CRCW, four offsprings will be produced with the following genotype and phenotype;
1 CRCR - red flower2 CRCW - pink flower1 CWCW - white flowerLearn more about incomplete dominance at: https://brainly.com/question/14053639
#SPJ1
monkeys and apes are odd when compared to other mammals because they lack the ability to produce vitamin c (ascorbic acid) endogenously (within their own bodies).
true
false
The statement "monkeys and apes are odd when compared to other mammals because they lack the ability to produce vitamin c (ascorbic acid) endogenously (within their own bodies)." is False.
Monkeys and apes are not odd when compared to other mammals because they lack the ability to produce vitamin C endogenously.
In fact, most mammals can produce vitamin C, but humans, other primates, guinea pigs, and some bats cannot.
This inability is due to the absence of an enzyme called L-gluconolactone oxidase, which is required for vitamin C synthesis.
Thus, they must obtain the micronutrient from exogenous sources via intestinal absorption. Dietary sources of vitamin C represent the main supply to humans as limited amount of the vitamin is generated by the gut microbiota.
To know more about vitamin c, refer here:
https://brainly.com/question/15080220#
#SPJ11
The endosperm is
an underdeveloped plant.
a strong outer coating.
a young plant.
a food source for the plant.
the motility test is not typically used to differentiate gram-positive cocci species... can you suggest / provide the reason why not?
The motility test is not typically used to differentiate gram-positive cocci species because most gram-positive cocci are non-motile.
This means that the motility test would not be able to provide a definitive answer as to which species of gram-positive cocci was present in a sample.
Furthermore, some gram-positive cocci species are motile, which would result in a false positive on the motility test.
For these reasons, it is not advisable to use the motility test as a primary tool to differentiate gram-positive cocci species.
In general, other tests such as biochemical tests, DNA sequence analysis, or serology are more reliable ways of identifying the presence of specific gram-positive cocci species.
To know more about gram-positive cocci, refer here:
https://brainly.com/question/30386545#
#SPJ11
a cross is made between a pure-breeding green budgie and a pure-breeding albino budgie. what are the genotypes of the parent birds?
The genotypes of the parent birds in this cross are GG (green) and gg (albino).
The parent birds have two different homozygous genotypes, GG and gg.
GG stands for the homozygous dominant genotype that produces green color in budgies, while gg stands for the homozygous recessive genotype that produces albino budgies.
Both of these genotypes are pure-breeding, which means that each parent bird has only one copy of the gene for the budgie’s color.
When a cross is made between two pure-breeding birds with different phenotypes, all of the offspring will be heterozygous, meaning they have both copies of the gene for the budgie’s color.
This is because both the GG and gg genotypes can be passed on to the offspring. The GG genotype is a dominant gene and will override the gg gene. This means that the offspring will have the dominant phenotype, which in this case is green.
To summarize, the genotypes of the parent birds in this cross are GG (green) and gg (albino). The GG gene is dominant and will override the gg gene, resulting in all offspring having a green phenotype.
To know more about genotypes, refer here:
https://brainly.com/question/29156144#
#SPJ11
which of the following organisms is multicellular? a. paramecium b. the bacteria streptococcus mutans c. cyanobacteria nostoc d. elodea
The organisms that are multicellular is option (d). Elodea.
Elodea is a type of aquatic plant that is multicellular, meaning it consists of many cells that are organized into tissues and organs.
These cells work together to form an organism with specialized functions. Elodea has a variety of shapes and sizes and is found in most ponds and lakes.
Its cells have specialized parts such as a cell wall and chloroplasts, which allow it to produce energy through photosynthesis.
This energy is used to help the plant grow and reproduce.
This Elodea leaf cell exemplifies a typical plant cell.
It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell.
To know more about multicellular organisms, refer here:
https://brainly.com/question/24381583#
#SPJ11
when the motor divisions of the ans affect a target in ways that complement each other or work together, it is called a(n) effect.
When the motor divisions of the ANS affect a target in ways that complement each other or work together, it is called a cooperative effect.
The ANS, or autonomic nervous system, is a system that regulates involuntary functions such as the heart rate, respiratory rate, digestion, metabolism, and so on. It is split into two sections: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The ANS is responsible for regulating and maintaining the body's internal environment in response to stress and other stimuli. The ANS, for example, increases heart rate, dilates pupils, and opens airways when we are threatened or frightened. When the threat is over, the parasympathetic nervous system (PNS) returns the body to a state of rest and relaxation.
The motor division of the ANS is made up of two branches: the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system is responsible for the "fight or flight" response, while the parasympathetic nervous system is responsible for the "rest and digest" response.
Hence, when the two divisions of the motor division of the ANS affect a target in ways that complement each other or work together, it is called a cooperative effect.
To know more about Cooperative Effect, refer here:
https://brainly.com/question/26509898#
#SPJ11
which biome would be described as having ample rainfall or moisture from fog, with large conifers such as sitka spruce and douglas fir?
The biome that would be described as having ample rainfall or moisture from fog, with large conifers such as Sitka spruce and Douglas fir is: a temperate rainforest biome.
The Sitka spruce is the most commonly found tree in this biome. They are known for their height, with some towering over 300 feet. Sitka spruce has needles that are sharp and pointy, and they can grow as long as an inch. This tree species is used for building and paper production due to its strength and density.
The climate in temperate rainforests is mild, moist, and rainy throughout the year. During winter, the temperature ranges from 30°F to 50°F, while summer temperatures are between 50°F to 60°F. It receives ample rainfall or moisture from fog throughout the year. It's said that there's usually around 140-180 inches of rainfall annually.
Biome is found in the coastal areas of the Pacific Northwest, specifically in North America. The temperate rainforest biome is home to many species of plants and animals, including the Sitka spruce, black bears, elk, and bald eagles. They are incredibly diverse, with around 130 species of mammals and hundreds of bird species living in this biome.
To know more about biome refer here:
https://brainly.com/question/1029654#
#SPJ11
100 POINTS PLEASE HELP In a separate location, take notes from the sources you've identified. The notes will provide details for your presentation. While taking notes, you may want to use these reading strategies. Write down two pieces of information that you intend to use in your presentation. Use these sources if you find them helpful: Earth's Magnetic Field Vital Protection for Earth Van Allen Radiation Belts Earth's Magnetosphere Auroras
true or false? the presence of ribosomes in the cytoplasm provides evidence for the endosymbiotic theory.
The statement "The presence of ribosomes in the cytoplasm provides evidence for the endosymbiotic theory" is true. This theory suggests that the mitochondria and chloroplasts of eukaryotic cells were once free-living prokaryotic cells that were engulfed by a larger cell. Over time, the engulfed prokaryotes developed a symbiotic relationship with their host and became permanent residents.
Ribosomes are composed of two subunits, each containing protein and RNA. Ribosomes are the sites for protein synthesis and are found in the cytoplasm of eukaryotic cells. Ribosomes are similar in both prokaryotic and eukaryotic cells. The similarity in ribosomal composition and structure between prokaryotes and eukaryotes provides strong evidence for the endosymbiotic theory.
The endosymbiotic theory explains the presence of ribosomes in the cytoplasm of eukaryotic cells. According to the theory, the prokaryotic cells that were engulfed eventually became permanent components of the host cell. This includes their ribosomes, which are found in the cytoplasm of eukaryotic cells. Thus, the presence of ribosomes in the cytoplasm provides strong evidence for the endosymbiotic theory.
To know more about endosymbiotic theory refer to-
https://brainly.com/question/29117311#
#SPJ11
why does this genotype produce a single detectable band, and why are the 1.0- and 1.5- kb restriction fragments not detected in southern blotting?
The single band is detected because of the: restriction enzyme,
and the 1.0- and 1.5- kb fragments are not detected in southern blotting: due to their size and similarity in size.
The genotype produces a single detectable band because the restriction enzyme used in the southern blotting process has the same restriction site in both DNA strands of the genotype. Therefore, the same length of DNA is produced after digestion with the enzyme.
In addition, the 1.0- and 1.5- kb restriction fragments are not detected in southern blotting because the gel used to separate DNA fragments does not have the resolution to separate them. The 1.0- and 1.5-kb fragments are too small and too similar in size to be differentiated, so they appear together as a single band on the gel.
This single band is the one that is detected. In conclusion, the single band is detected because of the restriction enzyme, and the 1.0- and 1.5- kb fragments are not detected due to their size and similarity in size.
To know more about restriction enzymes refer here:
https://brainly.com/question/29882269#
#SPJ11
what are the two groups with the largest total number of species critically endangered and endangered?
Answer: mammals and amphibians
The two groups with the largest total number of species that are currently classified as critically endangered and endangered are: mammals and birds.
According to the International Union for Conservation of Nature (IUCN), there are more than 8,200 species of mammals and 11,121 species of birds that are classified as either critically endangered or endangered.
Critically endangered species are those that are considered to be facing an extremely high risk of extinction in the immediate future, while endangered species are those that are facing a very high risk of extinction in the near future.
In the case of mammals, the main drivers of their population decline are habitat loss and degradation, hunting, and climate change, among other factors. In the case of birds, the main drivers are also habitat loss and degradation, pollution, and invasive species.
It is important to note that the IUCN's Red List also includes species of fish, reptiles, amphibians, and invertebrates that are considered to be critically endangered and endangered, though the total number of species for each of these groups is lower than those of mammals and birds.
Therefore, in conclusion, the two groups with the largest total number of species that are currently classified as critically endangered and endangered are mammals and birds.
To know more about mammals refer here:
https://brainly.com/question/15326492#
#SPJ11
glaucoma can result from select one: a. a decrease in the number of cones. b. damage to the suspensory ligament. c. increased amounts of vitreous humor. d. inhibition of the circulation of aqueous humor. e. opacity of the lens.
Glaucoma can result from the inhibition of the circulation of aqueous humor. So the correct answer is D.
Glaucoma is a group of eye diseases that can damage the optic nerve and lead to vision loss or blindness. In most cases, glaucoma is caused by a buildup of pressure within the eye due to the accumulation of aqueous humor, a clear fluid that circulates through the anterior chamber of the eye. Aqueous humor is produced by the ciliary body and flows through the pupil to nourish the cornea, lens, and trabecular meshwork before draining out of the eye through the trabecular meshwork and Schlemm's canal. If the flow of aqueous humor is inhibited, the pressure within the eye can increase and lead to optic nerve damage and vision loss over time.
Learn more about Glaucoma: https://brainly.com/question/942982
#SPJ11
a microbiologist notices two bacteria cells of the same species in close association with one another, with a thin projection running between them. what is likely going on there?
A microbiologist observes two bacteria cells of the same species in close proximity to each other, with a thin projection connecting them. In this case, the microbiologist may be observing a conjugation pilus, which is used by some bacteria to transfer genetic material, such as plasmids, from one cell to another.
In such situations, bacterial cells create a variety of appendages, such as fimbriae, pili, and flagella. The cells employ these structures in various ways, including sticking to other cells or surfaces, sharing genetic material, and moving through their environment.
In this situation, the thin projection between the two cells is most likely a pilus. Pili are long, thin, hair-like projections that extend from the bacterial cell surface. They are used in conjugation, the transfer of genetic material from one bacterial cell to another. This form of horizontal gene transfer can help the cells obtain new traits that can help them better adapt to their environment.
Bacteria are unicellular prokaryotic organisms, which means that they lack a nucleus and membrane-bound organelles. They are found in almost every environment on Earth, including soil, water, and the bodies of other living beings. Some bacteria are harmful and can cause diseases, while others are beneficial and play important roles in ecological and industrial processes.
Learn more about Bacteria and their conjugation here:
https://brainly.com/question/30762832
#SPJ11
given that a protein solution will have a 280/260 of about 1.75 and the same ratio for pure dna is 0.56, what % of the absorbance at 280 nm is due to dna when the 280/260 ratio is 1.155?
The following calculation can be used to calculate the percentage of the absorbance at 280 nm that is due to DNA: DNA percentage equals [(A280/A260) - (A280/A260)protein] DNA (A280/A260) and protein (A280/A260) x 100
What DNA 260 to 280 ratio is deemed acceptable?For DNA, a ratio of 1.8 is considered "pure"; for RNA, a ratio of 2.0 is considered "pure." It may indicate the presence of protein, phenol, or other pollutants that absorb heavily at or near 280 nm if the ratio is noticeably reduced in either situation.
What does DNA with a high 260 280 ratio mean?The sample is either contaminated by protein or a reagent like phenol, or there was a problem with the analysis, according to abnormal 260/280 ratios.
To know more about DNA visit:-
brainly.com/question/264225
#SPJ1
What is the answers for these?
The correct types of selections include:
9. In a lake in South Africa, Directional selection10. Panthers with teeth, Stabilizing selection11. Large squirrels, Disruptive selection12. Intrasexual selection13. Natural selection (no specific type of selection)What are selections?Selection is the process by which certain traits or characteristics become more or less common in a population over time, due to the effects of environmental or other factors on the survival and reproduction of individuals with those traits.
There are several types of selection that can occur, for example:
Sexual selection: the process by which certain traits become more or less common in a population due to their effects on mating success.Artificial selection: the process by which humans intentionally breed animals or plants for specific traits or characteristics.Directional selection: a type of natural selection in which one extreme of a trait distribution is favored, causing the average value of the trait to shift in that direction over time.Learn more on selections here: https://brainly.com/question/12263919
#SPJ1
The questions are:
Write the correct type of selection:
9. In a lake in South Africa, guppies are eaten by the pike fish, and the larger the guppy, the more difficulty it has escaping its pike fish predator.
10. Panthers with teeth that are too short have difficulty capturing prey, while panthers with teeth that are too long have difficulty chewing their food.
11. Larger squirrels can carry larger acorns to their burrows, and they outcompete smaller squirrels when acorn supplies are limited.
12. Large cuttlefish males can outcompete other males for access to mates. Small cuttlefish can trick larger males into thinking they are females so they get a chance to get close to real females without getting attacked.
13. A species of rabbits can have white, black, or gray fur. Most predators that hunt the rabbits do so at night when it is dark.
a lawyer is presenting a hair sample with its corresponding nuclear dna that was found at the crime scene. how will this most likely affect the criminal case?
Answer:
this will further the criminal case- absolutely! but i would need more context as to how it would further the case. does that make sense?
Explanation:
which muscles are part of the rotator cuff muscles and what is their main function as a whole
The parts of the rotator cuff muscles are: supraspinatus, infraspinatus, teres minor and subscapularis muscles.
The rotator cuff muscles are a group of four muscles in the shoulder area which consist of the supraspinatus, infraspinatus, teres minor and subscapularis muscles. These muscles are responsible for providing stability to the shoulder joint and enabling it to move in all directions.
Their primary role is to act as a rotator for the arm, allowing the shoulder to move in an arc around the joint. They also help to keep the humerus (upper arm bone) in its socket. In addition, they provide dynamic stability, helping to keep the shoulder joint stable while the arm is in motion.
As a whole, the rotator cuff muscles allow for full mobility and stability of the shoulder joint.
To know more about muscles refer here:
https://brainly.com/question/9883108#
#SPJ11
which of the following organs is not part of the cardiovascular system? group of answer choices a. artery d. capillary c. vein b. spleen
B. Spleen is not part of the cardiovascular system.
The cardiovascular system, also known as the circulatory system, is responsible for transporting blood throughout the body.
What is Cardiovascular System?
It includes the heart, which pumps blood, and the blood vessels, which carry blood to and from the heart and to the body's organs and tissues.
The cardiovascular system plays a crucial role in maintaining homeostasis, which is the balance of the body's internal environment. It helps to regulate body temperature, transport oxygen and nutrients to the body's tissues, and remove waste products such as carbon dioxide and other metabolic waste products from the body.
Arteries, veins, and capillaries are all blood vessels that are part of the cardiovascular system. Arteries carry oxygenated blood away from the heart to the body's tissues, while veins return deoxygenated blood back to the heart. Capillaries are small blood vessels that connect arteries and veins and allow for the exchange of nutrients and waste products between the blood and the body's tissues.
Learn more about Cardiovascular System from given link
https://brainly.com/question/946975
#SPJ1
true or false complex traits accumulate from many genes each contributing small amounts of characteristics
The statement 'Complex traits accumulate from many genes each contributing small amounts of characteristics' is true as this is polygenic inheritance.
In polygenic inheritance, multiple genes interact to affect a single trait. These genes may be located on different chromosomes and may come from both parents. Each gene contributes only a small portion to the overall trait, but taken together they can have a substantial effect.
For example, eye color is determined by multiple genes. Different combinations of alleles of these genes result in different eye colors. Additionally, the same gene can have different effects depending on the combination of alleles it is paired with.
Polygenic inheritance also plays a role in other traits, such as height, skin color, and behavior. These traits are determined by multiple genes, each of which contributes only a small amount. The genes interact in complex ways and are affected by environmental factors as well.
In summary, complex traits accumulate from many genes each contributing small amounts of characteristics. This phenomenon is known as polygenic inheritance.
To learn more about traits, click here:
https://brainly.com/question/1463051
#SPJ11
Why water is essential for the light reactants
Answer:The first part of photosynthesis is the light-dependent reactions. Water is necessary for these reactions because it is split by an enzyme within the thylakoid membrane. This splitting of water releases electrons, hydrogen ions, and oxygen.
Explanation:
an antibody screen is performed, and all three tubes are negative after adding ahg. check cells are added, and the tubes are centrifuged. no agglutination occurs after the addition of check cells. what is the next course of action?
An antibody screen is performed, and all three tubes are negative after adding AHG. check cells are added, and the tubes are centrifuged. no agglutination occurs after the addition of check cells. Then the next course of action is to report the results as negative. This means that no antibodies were detected in the patient's serum.
An antibody screen is a laboratory test that is used to detect the presence of antibodies in a patient's blood. It is often done when a person needs a blood transfusion or when a woman is pregnant. If the antibody screen is positive, it means that the patient has developed antibodies to a specific antigen. This can cause problems if they receive a transfusion with blood that contains that antigen.The addition of AHG to the blood sample causes any antibodies that are present to bind to the red blood cells.
The check cells are added to the tubes to ensure that the AHG is working properly. If the AHG is working properly, the check cells will cause the red blood cells to agglutinate. If no agglutination occurs, it means that the AHG is not working properly or that there are no antibodies present in the patient's serum.In summary, if all three tubes are negative after the addition of AHG, and check cells are added to the tubes but no agglutination occurs, the next course of action is to report the results as negative.
Learn more about agglutination at:
https://brainly.com/question/13022582
#SPJ11
which type of phagocytic disorder occurs when white blood cells cannot initiate an inflammatory response to infectious organisms?
The type of phagocytic disorder that occurs when white blood cells cannot initiate an inflammatory response to infectious organisms is known as Chronic Granulomatous Disease (CGD).
In the human body, phagocytic cells play a crucial role in fighting infectious diseases. They are a form of white blood cells that engulf and destroy infectious microorganisms. However, individuals who have phagocytic disorders have a reduced or absent capacity to kill certain microbes.
Phagocytic cells, specifically neutrophils and macrophages, use enzymes to produce reactive oxygen species (ROS) in response to invading pathogens. ROS have been shown to play a significant role in the pathogenesis of various inflammatory disorders, including CGD.
When there is a mutation in any of the genes that encode the proteins responsible for the production of ROS, it results in a phagocytic disorder called Chronic Granulomatous Disease (CGD).
As a result, patients with CGD are unable to create a strong inflammatory response to bacterial or fungal infections, resulting in the formation of chronic granulomas in various organs. Thus, the white blood cells are unable to initiate an inflammatory response to infectious organisms, making it difficult for the body to fight off infections caused by these microbes.
To know more about Chronic Granulomatous Disease (CGD):
https://brainly.com/question/5095667
#SPJ11
which method or methods of controlling eukaryotic gene expression is not employed in prokaryotic cells? select all that apply.
The methods of controlling eukaryotic gene expression not employed in prokaryotic cells are post-transcriptional processing and RNA interference.
What is eukaryotic gene expression?Eukaryotic gene expression is the regulation of gene expression in eukaryotic organisms such as plants and animals. Gene expression is the process of turning a gene on or off, resulting in the production of a specific protein or RNA molecule. It includes transcription, mRNA processing, translation, and post-translational processing. Gene expression can be regulated at different levels to respond to environmental changes and ensure proper development and growth.
Post-transcriptional processingPost-transcriptional processing is the conversion of pre-mRNA to mature mRNA, which is then transported to the cytoplasm for translation. In eukaryotic cells, pre-mRNA processing includes splicing, 5' capping, and 3' polyadenylation. In contrast, prokaryotic cells lack pre-mRNA processing, and transcription and translation occur simultaneously.
Read more about the gene:
https://brainly.com/question/1480756
#SPJ11
which bone does not contain paranasal sinuses? which bone does not contain paranasal sinuses? maxillary frontal temporal ethmoid
The bone that does not contain paranasal sinuses is the temporal bone.
Paranasal sinuses: The paranasal sinuses are a collection of four connected, air-filled cavities that surround the nasal cavity. They are the frontal sinuses, maxillary sinuses, sphenoid sinuses, and ethmoid sinuses, and they are all located in the bones of the skull, particularly in the skull's facial bones.
In the nasal cavity, paranasal sinuses have many functions. They help in humidifying the air we inhale, trapping dust and other foreign particles, and acting as a cushion against injuries to the facial area. However, the temporal bone does not have a paranasal sinus in it. It is situated below the parietal bone, and it is responsible for a variety of body functions. This includes the ear's protection and support, which is why the temporal bone is crucial.
The temporal bone is also crucial because it is responsible for enabling the facial expressions we make. The temporal bone is also responsible for a range of bodily functions. It is a vital bone for humans because it protects the ear and provides support for it.
The temporal bone is a cranial bone that is situated at the bottom of the skull, adjacent to the parietal bone. It is responsible for transmitting sound to the inner ear and serving as protection for the ear. The temporal bone has four parts: squamous, tympanic, mastoid, and petrous. The temporal bone is an essential bone for hearing, balancing, and facial expressions. It is the only bone in the skull that does not have a paranasal sinus in it.
Learn more about paranasal sinuses:
https://brainly.com/question/29487624
#SPJ11
how do the basic principles of inheritance, first identified in plants, differ from those in humans?
The basic principles of inheritance differ in plants and humans. These basic principles of inheritance were first identified by Gregor Mendel in his pea plant experiment. Mendel observed how certain traits were passed from parent to offspring.
The key principles of Mendelian inheritance are that genes come in pairs, one from each parent, and that these genes segregate randomly during gamete formation. During sexual reproduction, the offspring receives half of their genetic material from each parent. This is the reason why children can resemble one or both of their parents.
Humans, as well as plants, follow the Mendelian inheritance principles. The main difference between them is that humans have much larger genomes than plants, and they have more complicated mechanisms of gene regulation.
Humans have 23 pairs of chromosomes, whereas plants can have hundreds or thousands of chromosomes. In addition, plants can self-fertilize, whereas humans cannot.
To know more about inheritance here:
https://brainly.com/question/14930526#
#SPJ11
how many grams of salt would you add to make a 3% w/v solution with a total volume of 20 ml? ___ grams.
Answer: 0.6
the calculation is 0.03×x/20ml
where x is weight in grams terfore 3%of water 20 ml soln 0.6