which of the following functional groups is not chemically reactive and affects the expression of genes? carboxyl groups (-COOH) methyl groups (-CH3) Amino groups (-NH2) carbonyl groups (-C=O) Sulfhydryl groups (-SH) 78. which of the following is the correct sequence of levels in life’s hierarchy, beginning the lowest level of life? organisms, organ system, organ, tissue, cell. cell, tissue, organ, ecosystem and organisms, cell, tissue, organ, organ system and organisms molecule, atom tissue, organ system and cell cell, organ system, tissue, organ, and population

which of the following functional groups is not chemically reactive and affects the expression of genes? carboxyl groups (-COOH) methyl groups (-CH3) Amino groups (-NH2) carbonyl groups (-C=O) Sulfhydryl groups (-SH) 78. which of the following is the correct sequence of levels in life’s hierarchy, beginning the lowest level of life? organisms, organ system, organ, tissue, cell. cell, tissue, organ, ecosystem and organisms, cell, tissue, organ, organ system and organisms molecule, atom tissue, organ system and cell cell, organ system, tissue, organ, and population

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter25: The Origin Of Life

Section: Chapter Questions

Problem 2TYK: Which of the following is not a characteristic of all living organisms? a. They replicate genetic...

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Beadle and Tatum proposed the one gene-one enzyme concept - This hypothesis can now be restated in which of the following ways? A given sequence of DNA nucleotides contains information to make one enzyme Each gene contains information to make one protein, one lipid and one carbohydrate Each gene is actually an enzyme that catalyzes the production of one protein Each polypeptide is the result of the activity of one enzyme
What is the central dogma of molecular biology? a. DNA is the genetic material. b. Information passes from DNA directly to protein. c. Information passes from DNA to RNA to protein. d. One gene encodes only one polypeptide.
Gene Expression and the Impact of a Mutation. Can someone help me to answer the question 8 and 9, please? 8. How has the mutation altered the polypeptide? Is the function of the hemoglobin molecule (which includes 2 ẞ-globin polypeptides and 2 a-globin polypeptides) impaired? (Read your book to learn more about sickle cell disease.) 9. What is the relationship between the genotype in this case and the individual's phenotype? asap please
A gene affecting the behavioral outlook of individuals was discovered in several humans who can overcome anxiety caused by life's problems. Part of the gene that į translated into protein has a sequence 3'-GGATCCCGAATGTAATGCGTGCTC AATGGTAGTACGGC-5'. 1. What is the complementary strand of the DNA? 2. What is the sequence of the MRNA product after translation? 3. What is the sequence of the peptide encoded by the portion of the gene? (Use one letter symbol of amino acids)
Which of the following best describes the central dogma of molecular biology? A) mRNA is transcribed into DNA, which is then translated into a protein B) DNA is transcribed into mRNA, which is then translated into a protien C) DNA is translated into mRNA, which is then transcribed into a protein D) DNA is replicated into mRNA, Which is then transcribed into a protein E) mRNA is translated into DNA, which is then translated into a protein
Over several years, researchers learned more about proteins and the genes which code for them, the findings of which lead them to revise the original one gene-one enzyme hypothesis. Which of the following is NOT one of the findings which led to revision? a. many genes code can code for RNA molecules which never go on to produce a protein at all b. oftentimes, many genes are required to produce a single protein, where one gene produces one polypeptide and many polypeptides together make the single protein c. in addition to enzymes, gene products also include non-enzyme proteins like keratin and insulin d. a single gene produces one specific enzyme e. a single gene may code for multiple different (closely related) polypeptides
Suppose a mutation affects an enzyme that is required to repair the damage to DNA caused by the loss of purine bases. the loss of a purine occurs about 5000 times in the DNA of each of your cells per day. as the average difference in DNA sequence between humans and chimpanzees is about 1%, how long will it take you to turn into an ape? What is wrong with this argument?
1. how is information from the DNA passes on from one cell to another?2. How does the structure of a DNA molecule hellp account for the great variety of life that exists on earth?3. Does your mRNA model more closely resemble the DNA strand from which it was transcribed?4. Explain how the structure of DNA enables the molecule to be easily transcribed. Why it is important for genetic information?5. Why is RNA important to the cell?6. How does the mRNA molecule carry information from DNA?
1. One beneficial mutation is using point mutation in improving food crops, resulting in variation and yielding stronger, more disease-resistant crops. What outcomes can come about from this type of mutation?
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