QUESTION 1 The relative amounts of each nucleotide base are tabulated below for four different viruses. Virus T CUG A 1 34 42 0 18 39 || III 0 24 35 27 17 0 12 9 12 9 IV 23 16 0 16 23 For each virus, indicate whether its genetic material is DNA vs. RNA and double-stranded vs. single-stranded by putting the correct letter in the box next to each virus. Every choice will be used once and only once. Virus I: Virus II: Virus III: Virus IV: a. Single-stranded DNA b. Double-stranded DNA c. Single-stranded RNA d. Double-stranded RNA

QUESTION 1 The relative amounts of each nucleotide base are tabulated below for four different viruses. Virus T CUG A 1 34 42 0 18 39 || III 0 24 35 27 17 0 12 9 12 9 IV 23 16 0 16 23 For each virus, indicate whether its genetic material is DNA vs. RNA and double-stranded vs. single-stranded by putting the correct letter in the box next to each virus. Every choice will be used once and only once. Virus I: Virus II: Virus III: Virus IV: a. Single-stranded DNA b. Double-stranded DNA c. Single-stranded RNA d. Double-stranded RNA

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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QUESTION 27 Which of the following methods can be used to compare the amounts of one specific mRNA that is expressed by two different cell lines? A. Immunohistochemistry B. Western blotting C. Polymerase chain reaction (PCR) D. Immunocytochemistry
Question 29 PCR is a technique that: produces information regarding the sequence of nitrogenous bases virtually eliminates operator error from DNA analysis All of these can produce many exact copies of segments of DNA provides a statistical analysis of the nitrogenous-base pairings
QUESTION 26 In a double-stranded DNA molecule, how are the sequences of each strand related to each other? A The sequences are identical. B The sequences are identical except that one strand has a U where the other strand has a T. C The sequences are the reverse compliment of each other and use the nucleotides, A, G, U, and C only. D The sequences are the reverse complement of each other.
Question 24 pts When we are vaccinated against SARS-CoV-2, what happens? (select all correct answers) Group of answer choices a) Our adaptive immune system becomes primed to recognize the SARS-CoV-2 virus. b) Our DNA becomes modified. c) We will permanently have viral proteins in our cells d) Our cells will make a partial or complete viral protein, which our immune system will recognize as foreign. e) Memory cells will be ready for a new infection.
QUESTION NO. 1 A transition mutation A. occurs when a purine is substituted for a pyrimidine or vice versa. B. results from the insertion of one or two bases into the DNA chain. C. is most frequently caused by chemicals (like acridine) that intercalate into DNA. D. results from substitution of one purine for another or of one pyrimidine for another. E. always is a missense mutation QUESTION NO. 2 Degeneracy of the generic code denotes the existence of A. multiple codons for a single amino acid. B. codons consisting of only two bases. C. base triplets that do not code for any amino acid. D. different systems in which a given trip let codes for different amino acids. E. codons that include one or more of the unusual bases. QUESTION NO. 3 Replication A. requires that a phosphodiester bond of the incoming dNTP be hydrolyzed in order to be added to the growing chain. B. uses 5' to 3' polymerase activity to synthesize one…
Question 2. Retroviruses are used in gene therapy. The goal of gene therapy is to insert in the patient genome a copy of a functional gene that is defective in the patient. Since Retroviruses integrates their genome into the host genome they are ideal gene therapy delivery systems. What would be a potential risk of this type of treatment? The individual treated could be more susceptible to infection by other retroviruses Insertion of the retroviral genome into the host genome can cause dangerous mutations. There are not recognized risks with this gene therapy approach. Genes from the host can be inserted into the retroviruses and laterally moved to other cells.
QUESTION 20 All of the following are characteristics of pathogens that allow them to rapidly and effectively evolve, EXCEPT: a. Large genome size b. Large population size c. Short generation time d. High mutation rate
Question 1. The nitrogenous base content of a sample of DNA was found to be 34% adenine. Determine the amounts of the other three bases in this sample.
question 13 The nucleic acid of a virus is A DNA only B RNA only C both DNA and RNA D either DNA and RNA
Question 6 In the first part of the experiment, there were only a few colonies on the streptomycin positive plate. In the second part, there are a large number of colonies on the streptomycin positive plate that was inoculated with the antibiotic resistant strain. What is the most likely explanation for this difference? 1. The antibiotic resistant strain was composed of a large number of individuals with resistance to streptomycin 2. The exposure to streptomycin caused a mutation in a few individuals
QUESTION 3 Strands of DNA join together with Hydrogen bonds. These bonds form between the Nitrogenous bases. These bonds are specific and only occur betwwe A. Aand T form 3 bonds, and G and C form 2 bonds B. Aand G form 3 bonds, and T and C form 2 bonds C. Aand T form 2 bonds, and G and C form 3 bonds D. U and T form 3 bonds, and A and C form 2 bonds
Question #1 DNA Part AHow can an isolated DNA bind to DNA on a column? What property allows the column to do this? Short response. Part BGiven your answer part A, why would you use RNase (AKA Ribonuclease) to treat a DNA sample? Explain your answer in the context of what you know about RNA. Short response.