Answers
The key elements of replication, transcription, and translation are according to the process to which they belong:
Replication
DNA polymeraseOkazaki fragmentsprimerTranscription
RNA polymerasepromoterexons and intronsTranslation
ribosomescodons and anti‑codonsaminoacyl-tRNAsDNА replicаtion is the process thаt involves copying of genetic mаteriаl from а DNА molecule to form аnother new DNА molecule, the old DNА molecule аcts аs the templаte, the process tаkes plаce in the nucleus by the enzyme DNА polymerаse. Trаnscription is the process where DNА molecule is used to form а messenger RNА using DNА molecule аs а templаte. The process tаkes plаce in the nucleus аnd is undertаken by enzyme RNА polymerаse. Trаnslаtion involves formаtion of polypeptides (proteins) from the messenger RNА, it tаkes plаce in the cytoplаsm, involves reаding of the mRNА codons by the tRNА аnticodons.
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Related Questions
Despite the diversity, cells resemble each other to an astonishing degree in their chemistry. For example, the same 20 ________ __________ are used to make proteins.
Answers
Despite the diversity, cells resemble each other to an astonishing degree in their chemistry. For example, the same 20 amino acids are used to make proteins.
What is a cell?A cell is the basic unit of life. It is the smallest unit of an organism that can perform all the basic functions necessary for life. All living organisms are made up of one or more cells, and the study of cells is called cell biology. Cells come in a variety of shapes and sizes, but all cells have several key features in common, including a plasma membrane that encloses the cell, genetic material in the form of DNA, and the ability to produce energy and carry out metabolic processes. Some cells are simple and single-celled, while others are complex and made up of many specialized cells that work together as tissues and organs to perform specific functions.
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Determine the possible gametes that could normally be formed from an organism with the genotype AABbCc.
Answers
The plant with the genotype AABbCc produces four gametes.
What types of gametes can the AABbCc genotype produce?The only gametes produced by a plant with the genotype AABbCC are ABC and AbC. The genotypes present in the cross are calculated using the 3n formula, whereas the phenotype present in the cross is determined using the 2n method.
How many children will result from the union of AaBbCc and AaBbCc?An F1 hybrid with the AaBbCc genotype is created by crossing the AABBCC and aabbcc genotypes. An organism can create a total of 2n different types of gametes, where n is the total number of heterozygous genes. Because the hybrid AaBbCc is heterozygous for three genes, it can produce a maximum of 23=8 gametes.
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In 2020, the black bear population in NJ was estimated to be 5,000 bears with about 3/5ths of those living in the northwest counties. On average, NJ black bears have a maximum life span of 10 years and female bears have 3 cubs per year with a 70% survival rate. In 2020, the Governor went against the guidance from the NJ Department of Environment Protection and stopped regulated bear hunting on public lands and in 2021 he cancelled all hunting of black bear in NJ. How would you expect the black bear population to respond to a total hunting ban?
Answers
Given that the black bear population in NJ was estimated to be 5,000 in 2020, a hunting ban could lead to an increase in the black bear population.
Why banning hunting is important?Without regulated hunting, the population may continue to grow, as there are fewer deaths due to hunting and an increase in the number of cubs surviving to adulthood. On average, female bears have 3 cubs per year with a 70% survival rate, so the number of bears could increase by 2.1 cubs per female per year.
However, there are limits to the black bear population growth, such as food availability and habitat loss. If the habitat can't support a larger population, the population growth may slow or the bears may start to move into areas with more resources, potentially leading to conflicts with humans.
Additionally, disease outbreaks can also impact the black bear population, regardless of hunting pressure.
In conclusion, while a hunting ban could lead to an increase in the black bear population, it is important to consider all the other factors that can impact the population to make accurate predictions.
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Teach a child
How would you explain the following to a child?
1) Neurons
2) Peripheral Nervous System
3) Central Nervous System
4) Endocrine System
Answers
Answer:
Explanation:
Neurons:
Neurons are special cells in our body that help us to think, feel, and move. They are like tiny messengers that send signals to our brain to tell us what is happening in our body or around us. They are very important for us to learn new things, remember old things, and feel emotions.
Peripheral Nervous System:
The peripheral nervous system is like a big network of roads that connect different parts of our body to our brain and spinal cord. It is made up of nerves that carry messages back and forth between the brain and the rest of the body. It helps us to sense things like touch, pain, temperature, and pressure.
Central Nervous System:
The central nervous system is like the control center of our body. It includes our brain and spinal cord, which are the main parts of our nervous system. Our brain helps us to think, learn, and feel emotions, and our spinal cord helps us to move and feel sensations. Together, they work to help us control our body and respond to the world around us.
Endocrine System:
The endocrine system is like a group of messengers that help our body to communicate and work properly. It is made up of different glands in our body, such as the thyroid gland, adrenal gland, and pancreas, which produce hormones. Hormones are like special chemicals that travel through our blood to different parts of our body and help to control things like growth, metabolism, and reproduction. They work with our nervous system to help our body stay healthy and balanced.
What is self fertilization?
Answers
Self fertilization is the merging of gametes (sex cells) produced by the same person that is male and female.
Self fertilization is the process by which male and female gametes (sex cells) produced by the same individual fuse together to form fertile offspring. It is possible for bisexual creatures, such as the majority of flowering plants, numerous protozoans, and a great number of invertebrates, to fertilize themselves.
There are a variety of plants, including orchids, peas, sunflowers, and tridax, that have the ability to pollinate themselves. The vast majority of plants that are capable of self-pollination have relatively unnoticeable blooms that deposit pollen directly onto the stigma just prior to the bud opening.
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What is metabolism?
the chemical reactions that take place in living organisms to provide energy and sustain growth
the chemical processes that take place in living organisms to break down food into glucose
the physical processes that take place in living organisms to burn glucose to power the motion of muscles
the physical processes that take place in living organisms to take in oxygen and bring it to cells
Answers
Answer:
The physical processes that take place in the living organisms to take in oxygen and bring it to the cell.
use the information you learned from the dna microarray to write an argument to convince smokers to stop smoking. be sure to reference any differences you saw in gene expression in smokers and nonsmokers studied in the experiment
Answers
Smoking is a dangerous habit that can lead to serious health problems The results of DNA microarray experiments that have been conducted to study the differences in gene expression between smokers and non-smokers.
The results of these experiments clearly show that smoking has a significant impact on gene expression, leading to numerous changes in the body that can increase the risk of disease.
In the experiments, researchers found that there were hundreds of genes that were differentially expressed in smokers compared to non-smokers. This suggests that smoking causes widespread changes in the body at the molecular level, affecting not only the lungs but also other organs and systems. The results also showed that many of the genes affected by smoking play a role in processes such as inflammation, oxidative stress, and cell death, which can increase the risk of diseases such as cancer, heart disease, and lung disease.
In addition to these health risks, the results of the DNA microarray experiments also demonstrate the long-term effects of smoking on gene expression. Even after quitting smoking,
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Complete the following sentences about the functional importance of floral structure with the correct terms. symmetry whorls reduction
pollinators secondary metabolites fruits
carpels organs petals developmental primary metabolites chloroplasts pigments sensory
Some important traits that influence the reproductive success of a flower include: the presence or absence of whorls, the fusion of organs to one another, and the overall symmetry of flowers. These traits are important because of their influence on attracting _____ In addition to structure and shape, different ____ can produce different colors in _____which also attract animals.
Another cue, fragrance, is also an effective attractant which uses _____ to get the attention of pollinators. Because human ______ systems are similar to other animals, we are also often attracted to particular flowers.
Answers
Some important traits that influence the reproductive success of a flower include: the presence or absence of petals, the fusion of carpels to one another, and the overall symmetry of flowers.
What is trait?A phenotypic trait is an evident, observable, and quantifiable property of an organism; it is the visible expression of genes. A phenotypic characteristic is anything like a particular hair color or eye color. A trait is a genetically determined attribute or condition. It is the trait inherited from the parent by the offspring.
Here,
These traits are important because of their influence on attracting pollinators. In addition to structure and shape, different pigments can produce different colors in petals which also attract animals. Another cue, fragrance, is also an effective attractant which uses secondary metabolites to get the attention of pollinators. Because human sensory systems are similar to other animals, we are also often attracted to particular flowers.
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true/false. contrast hydrogen bonds, electrostatic attractions, van der waal's attractions, and the hydrophobic force in terms of how and when they form and the role they play in cell biology.
Answers
False. Hydrogen bonds form between a positively charged hydrogen atom and a negatively charged atom of nitrogen, oxygen, or fluorine, and play a role in maintaining the three-dimensional structure of biomolecules such as DNA and proteins .
Electrostatic attractions form between positive and negative ions, and play a role in maintaining the stability of ionic bonds in salts and other charged molecules.
Van der Waals attractions form between non-polar molecules as a result of temporary fluctuations in electron distribution, and play a role in the interaction between lipids and other biological molecules.
The hydrophobic force forms between non-polar molecules in an aqueous environment, causing them to group together and exclude water. This plays a role in the formation of cellular membranes and the partitioning of lipids and other hydrophobic molecules in cells.
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DNA and RNA are structurally similar in some ways, but different in others. Identify whether each of the following statements applies to DNA, RNA, both or neither.Please do not give me the answers from other Chegg's question because my question is different from them
Answers
DNA and RNA are structurally similar in some ways, but different in others the answers are 1. both, 2. RNA, 3. DNA, 4. neither, 5. RNA, 6. both, 7. DNA, 8. neither.
1. both
Nitrogen bases with the primary structural components purine and pyrimidine are found in DNA and RNA.Adenine, Thymine, Cytosine, and Guanine are the four nitrogen bases found in DNA.RNA has four nitrogen bases as well. Uracil is present in RNA in place of thymine.Purine bases include adenine (A) and guanine (G). Pyrimidine bases include cytosine (C), thymine (T), and uracil (U).2. RNA
RNA has four nitrogen bases as well. Uracil is present in RNA in place of thymine.
3. DNA
DNA (Deoxyribonucleic Acid), as its name implies, comprises the sugar deoxyribose.
neither 4.
The percentages of thymine and guanine are not equal in DNA or RNA.
5. RNA
RNA (ribonucleic acid), as its name implies, comprises the sugar ribose.
6. both
The nucleotides are joined to sugar in a beta-N-glycosidic bond in both DNA and RNA.
7. DNA
There are an equal number of purine and pyrimidine nucleotides in DNA.
neither 8.
Sugars are linked together in DNA or RNA by 3'–5'phosphodiester links .
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Consider a sound wave produced by a tuning fork. Through which materials would the sound travel the fastest? Order the materials shown according to the speed at which a sound wave would travel through them, from slowest to fastest.
(Hot air, cold air, glass, the ocean)
Slowest sound travel material:___
Slower sound travel material:___
Faster sound travel material:___
Fastest sound travel material:___
Answers
1. Cold air
2. Hot air
3. Ocean
4. Glass
Which of the following statements regarding Darwin's theory of adaptation by natural selection are accurate?
A. advantageous traits are passed from parents to offspring
B. organisms must compete for resources with other members of their population
C. populations are made up of individuals that are exactly alike
D. all environments have an infinite ability to support increasing populations
E. if it can survive in a given environment, an organism is evolutionarily successful
Answers
The correct statements regarding Darwin's theory of adaptation by natural selection are:
A. advantageous traits are passed from parents to offspring
B. organisms must compete for resources with other members of their population
E. if it can survive in a given environment, an organism is evolutionarily successful.
A. Darwin's theory of evolution by natural selection states that beneficial traits that help an organism survive and reproduce are more likely to be passed on to future generations. This process, known as natural selection, leads to the evolution of species over time.
B. Competition for resources is a key aspect of Darwin's theory of evolution by natural selection. Organisms must compete for limited resources such as food, water, and mates with other members of their population. Those that are best adapted to the environment and can most effectively compete for resources are more likely to survive and pass on their traits to future generations.
E. Evolutionary success in Darwin's theory of evolution by natural selection is determined by an organism's ability to survive and reproduce in its environment. If an organism is able to survive and pass on its traits to offspring, it is considered evolutionarily successful, even if it is not the most fit organism in its environment.
C. Darwin's theory of evolution by natural selection does not state that populations are made up of individuals that are exactly alike. In fact, genetic variation within a population is an important factor in evolution by natural selection, as it provides the raw material for natural selection to act upon.
D. Darwin's theory of evolution by natural selection does not state that all environments have an infinite ability to support increasing populations. In fact, populations are limited by their environments, and those that grow beyond the carrying capacity of the environment will experience increased competition for resources and a decrease in population size.
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How does natural selection impact competition?
Answers
Answer:
it decreases competition
Explanation:
for example, if there are too types of lizards in an area both competing for the same bugs but one breed of lizard can be more easily seen by predators, then those lizards are gonna get eaten, leaving the other lizard breed less competition for food
TRUE/FALSE. oral cavity breaks up food particles and starts enzymatic break down of sugars, proteins but not fatty acids.
Answers
False. The oral cavity does break up food particles, but it does not start the enzymatic breakdown of sugars, proteins, or fatty acids. This process is initiated by the digestive enzymes released in the stomach and small intestine.
What is enzymes?Enzymes are proteins that act as catalysts in biochemical reactions. They speed up chemical reactions in the body, and are essential for life. Enzymes are involved in virtually every metabolic process, and are also involved in digestion, energy production, and the synthesis of new molecules. Enzymes are highly specific, meaning that they only work with certain molecules. Different enzymes have different functions and can be found in a variety of tissues, organs, and metabolic pathways. Enzymes typically require a specific pH and temperature range to work optimally, and can be affected by factors such as diet, medications, and even stress. Without enzymes, most biochemical processes would take too long to occur, making life impossible.
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The field of PNI is most broadly concerned with how the psychological, neural, and endocrine systems together affect the
A. Reproductive system.
B. Cardiovascular system.
C. Immune system.
D. Respiratory system.
Answers
The field of PNI is most broadly concerned with how the psychological, neural, and endocrine systems together affect the immune system.
Thus, the correct option is C.
Psychoneuroimmunologists’ аreа of study, cаlled psychoneuroimmunology (or PNI for short), is а highly integrаtive field thаt exаmines how psychologicаl, neurаl, аnd immunologic processes influence eаch other аnd shаpe humаn heаlth аnd behаvior. Using а vаriety of different in vivo, in situ, аnd in vitro techniques in both humаn аnd аnimаl model system, PNI hаs yielded numerous discoveries thаt hаve helped to greаtly clаrify how sociаl, psychologicаl, аnd behаviorаl fаctors influence the аctivity of the immune system; how the immune system аffects cognition, emotion, neurаl processes, аnd behаvior; аnd how these bidirectionаl interаctions shаpe risk for а vаriety of mentаl аnd physicаl heаlth problems, including аnxiety disorders, depression, posttrаumаtic stress disorder (PTSD), cаrdiovаsculаr diseаse, chronic pаin, certаin cаncers, аnd neurodegenerаtion.
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Which of the following is a characteristic that distinguishes viruses from bacteria cells?
Answers
One of the main characteristics that distinguishes viruses from bacterial cells is their size, viruses are smaller than bacteria, the largest being smaller than the tiniest. The correct answer A.
Additionally, viruses are not capable of cellular respiration and are not considered to be living organisms, whereas bacteria cells are alive and can reproduce on their own.
Viruses are composed of a single molecule of genetic material, either DNA or RNA, surrounded by a protein coat. They contain no cellular structures and are parasitic in nature, meaning that they rely on other cells for their replication.
Which of the following characteristics distinguishes viruses from bacterial cells?
A)Viruses are smaller than bacteria, with the largest being smaller than the tiniest.
B)They have only a protein coat and a nucleus of genetic material, either RNA or DNA.
C)Viruses, unlike bacteria, cannot survive without a host.
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Which of the following statements about Ulva's haploid stage is true? A) Haploid cells produce gametes by meiosis. B) Haploid cells are produced by meiosis of diploid cells. C) Gametes of the same mating type fuse to produce a diploid zygote.
D) The haploid Ulva cells are genetically identical to their diploid parents.
Answers
The correct option b) Haploid cells are produced by meiosis of diploid cells.
Ulva alternates between a haploid gametophyte and a diploid sporophyte, two morphologically comparable multicellular adult stages. Haploid zoospores are produced by diploid sporophytes and become gametophytes. Gametophytes that generate haploid gametes are called
What is the haploid process?DNA replication occurs once in the parent cell, and then there are two independent cycles of nuclear division. Four haploid daughter cells are produced as a result of the procedure, meaning they each have half as many chromosomes as their diploid parent cell.
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Which of the following double stranded DNA molecules would maintain its double helical structure longer as temperature increases?A. A DNA molecule that has more guanine and cytosine nucleotidesB. Both DNA molecules would be equally stable under conditions of increasing temperatureC. A DNA molecule that has more adenine and thymine nucleotides
Answers
A. A DNA molecule that has more guanine and cytosine nucleotides of the following double stranded DNA molecules would maintain its double helical structure longer as temperature increases
Which DNA double helix bonds are the strongest?A-T base pairings contain two hydrogen bonds, compared to three for G-C base pairs. As a result, double-stranded DNA with more G-C base pairs will be stronger and more stable, and it will also have a higher melting point.
Van der Waals forces, hydrogen bonds between complementary organic bases (a base pair), and hydrophobic interactions between the nitrogenous bases and the surrounding water sheath all support the shape of the DNA helix.
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suppose you have a black male rabbit and a black female rabbit each has a dominant gene f for the black fur but the female also has a recessive gene f for white fur what are the chances for white Offspring when these two rabbits mate
Answers
If we have a black male rabbit and a black female rabbit each has a dominant gene f for the black fur but the female also has a recessive gene f for white fur then the chances for white offspring when these two rabbits mate is 25 percent.
What is the chance of obtaining recessive offspring from a heterozygous cross?The chance of obtaining recessive offspring from a heterozygous cross is 25 percent or 1/4 because it depends on the generation of two recessive gametes.
Therefore, with this data, we can see that the likelihood of recessive offspring from a heterozygous cross is 25 percent.
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The elastic structures of muscle and tendons, called the _____ ______ ______, must be pulled tight before a muscle contraction can result in shortening.
Answers
Elastic Series Component. Because they are slightly elastic and in series (in line) with the force of muscle contraction, tendon supply what is known as a series-elastic component.
What hurts when a muscle is pulled?
A strain occurs when a muscle is overextended to the point of tearing. Another name for it is a pulled muscle. A strain is a hurt that hurts. When a muscle contracts, the series-elastic component helps to relieve part of the stress; however, this component must be pushed tightly in order for the muscle to shorten.
What is the name of the elastic muscle tissue?
The epimysium, a sheath of connective tissue, encases each muscle.
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Why are bacteria and viruses considered immortal
Answers
Answer:
Bacteria and viruses are considered immortal because they reproduce and multiply very rapidly. Bacteria can divide into two identical daughter cells in as little as 20 minutes. Viruses can replicate by hijacking a host cell's metabolic machinery and creating multiple copies of themselves, which can then infect other cells. This rapid reproductive rate and lack of aging mechanisms means that bacteria and viruses can continue to reproduce indefinitely, making them "immortal" in a sense. However, bacteria and viruses can still be killed by antibiotics, antivirals, or host immune responses, so they are not truly immortal.
According to Hardy-Weinberg principal, if p and q are unchanging, the population is in equilibrium. Which of the following is NOT a requirement for the population to maintain this equilibrium?
Question 16 options:
the population must not have any natural selection
there must not be any mutations in the gene pool
the population must be small
the population must have random mating
Answers
Explanation:
The population must not have any natural selection is NOT a requirement for the population to maintain equilibrium according to Hardy-Weinberg principal. The Hardy-Weinberg principal states that a population will remain in genetic equilibrium as long as certain conditions are met, which include no mutations, random mating, a large population size, and no gene flow. Natural selection is not one of the conditions for the population to remain in equilibrium according to Hardy-Weinberg principle.
enzymes in pancreas..
Answers
Answer:
pancreatic enzymes.....
Determine whether the statement is true or false, and why. "It is impossible for any two people to have the same genetic fingerprint."
A. False, it should read "While it is not impossible for two people to have the same genetic fingerprint, it is very unlikely."
B. False, it should read "It is impossible for two people to have the same genetic fingerprint, but it is not difficult for someone to make a fake one."
C. True
D. False, it should read "It is possible for two people to have the same genetic fingerprint, it occurs frequently, and there must be other evidence in order to convict someone."
Answers
False; it should say "There must be other information in favor to convict anyone." It is conceivable for two persons to have the same findings support the hypothesis, and it happens frequently.
What three sorts of fingerprints are there?However every fingerprint is unique, they always fall into one of three main categories: its whorl, which resembles a whirlpool, loop loop, which resembles a teardrop, and the arch, which resembles a pass of a hill.
Explain what a fingerprint is?The sinusoidal grooves on the tips of the hands and toes leave a fingerprint impression. Since each person's finger has a different pattern of ridges that does not change with age or growing, fingerprints provide an unfailing method of identity documents.
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which of the following is a disease in which the walls of the ventricles of the heart are markedly thickened?
Answers
Hypertrophic cardiomyopathy is a disease in which the walls of the ventricles of the heart are markedly thickened.
Hypertrophic cardiomyopathy, abbreviated as HCM, is a complicated form of cardiac disease that manifests itself in abnormalities of the heart muscle. It may result in:
A thickening of the muscle in your heart (especially the ventricles or lower heart chambers).
Left ventricular stiffness.
Mitral valve changes.
Cellular alterations.
This most frequently happens near the septum of your nose. The muscular wall that separates the left side of your heart from the right side of the heart is called the septum. When the septum that separates your heart's lower chambers, known as ventricles, becomes thicker, it can cause a number of problems.
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Option A. Hypertrophic Cardiomyopathy (HCM) is a genetic disorder in which the walls of the heart ventricles become abnormally thickened.
This thickening can cause the heart to become less efficient at pumping blood throughout the body, leading to symptoms such as:
Shortness of breathChest painDizzinessIrregular heartbeatsEven sudden deathHCM is a chronic condition that typically has no cure and requires lifelong management. Treatment may include medications to reduce the thickness of the heart walls, surgery to reduce obstruction in the heart, or implantable devices to regulate the heart rate.
Patients with HCM are advised to seek regular medical care to monitor their condition and to follow a healthy lifestyle.
Here's the full task:
Which of the following is a disease in which the walls of the ventricles of the heart are markedly thickened?
Choose the right option:
A. Hypertrophic Cardiomyopathy.B. Atrial Fibrillation.C. Congestive Heart Failure.D. Dilated Cardiomyopathy.Learn more about cardiopulmonary diseases: https://brainly.com/question/11656801
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Which of the following is an example of demonstrative evidence?
Gun
Fingerprint
Handwritten note
Model of crime scene
Answers
Answer: Model of crime scene
Explanation:
relate how the repetitive polymerization of monomers into polymers can yield macromolecules with diverse properties and functions.
Answers
The repetitive polymerization of the monomers to form the polymers which can yield macromolecules with the diverse properties and functions and this can be done by varying the sequence of the subunits, the cell can make a diversity of different polymeric molecules.
Monomers are basically the basic structural units of the polymers. Monomers undergo polymerization to form complex structures which are known as the polymers. These monomers can be completely identical or can be of different types.
Different types of macromolecules exhibiting diverse structural organization as well as functions can be obtained by changing the sequence as well as type of subunits which are polymerizing.
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Table 1 shows the stage and number of cells and chromosomes per cell at the end of the stage in a 2n=24 organism.Table 1. Cell and chromosome count during selected phases of meiosisStage: Number of Cells: Number of Chromosomes per Cell:Prophase I 1 24Metaphase I 1 24Anaphase I 1 24Telophase I 1 24Beginning of Prophase II 2 12Which of the following statements correctly describes the chromosomes in each daughter cell at the end of meiosis I?A) Each daughter cell contains 12 chromatids. Each chromatid is one of two from a single chromosome with the other one of the pair found in the other daughter cell.B) Each daughter cell contains 12 chromosomes, each composed of two chromatids. Since the chromosomes were randomly divided, one daughter cell may contain both of a pair of homologous chromosomes, while the other cell contains both of another pair of homologous chromosomes.C) Each daughter cell contains 12 chromosomes, each composed of two chromatids. Each chromosome is one of a pair of homologous chromosomes from the parent cell, with the other homologue found in the other daughter cell.D) Each daughter cell contains 24 separate chromatids. Since every two chromatids were originally joined, forming one homologous chromosome, the number of chromatids is divided by two to determine the number of chromosomes.
Answers
The following statement correctly describes the chromosomes in each daughter cell at the end of meiosis I: Each daughter cell contains 12 chromosomes, each composed of two chromatids. Each chromosome is one of a pair of homologous chromosomes from the parent cell, with the other homologue found in the other daughter cell.
Thus, the correct option is C.
Meiosis I is а type of cell division in which diploid pаrent cell give rise to four hаploid dаughter cells. The meiotic division is а chаrаcteristic of germ cells. Some of the chаrаcteristics of meiosis I аre:
The pаrent cell divides twice to give rise to four hаploid dаughter cells.The number of chromosomes in dаughter cells аre hаlf of the pаrent cell. Meiotic division tаkes plаce in reproductive cells.The dаughter cells consist of 12 chromosomes thаt аre composed of two chromаtids. The chromosome in the dаughter cell is а pаir of homologous chromosome from the pаrent cell. the other homologue is found in the other dаughter cell.
Your question is incomplete, but most probably your full question can be seen in the Attachment.
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Which molecule is the monomer used to build polypeptides or protein polymers? Draw this molecule and label all five parts.
Answers
In the amino acid diagram photo, the molecules are:
Left: NH2 = Amino group
Up: Hydrogen atom
Bottom: R variable group
Right = Carboxyl group
Middle = Central carbon atom
Dopamine receptors are
A. G-protein coupled receptors that only activate adenylyl cyclase
B. G-protein coupled receptors that can either activate or inhibit adenylyl cyclase
C. Ionotropic receptors that are excitatory
D. G-protein coupled receptors that only inhibit adenylyl cyclase
Answers
Dopamine receptors basically G-protein couples receptors which are able to activate or even inhibit adenylyl cyclase.
The correct option is option B.
G-protein-coupled receptors or GPCRs are basically the largest as well as the most diverse group of membrane receptors which are found in eukaryotes. GPCRs happen to interact with the G proteins that are present in the plasma membrane. Whenever an external signaling molecule happens to bind to a GPCR, it leads to a conformational change in GPCR which consequently triggers the interaction between the GPCR and a G protein present nearby.
The common target of these activated G proteins is adenylyl cyclase which is basically a membrane-associated enzyme which when activated catalyzes synthesis of cAMP. Dopamine receptors are also G-protein couples receptors which are able to activate or even inhibit adenylyl cyclase.
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