Answered: Question 9 Listen A plasmid is a a)…

Question 9 Listen A plasmid is a a) Circular piece of DNA that foreign pieces of DNA can be inserted into b) An enzyme that cuts DNA c) A way to separate DNA of different sizes

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 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 11.1 Give an overview of the possible applications of microbial biotechnology that can be used to curb the spread of newly emerging diseases such as Covid-19. 1.2 Although recombinant DNA technology has proven beneficial in health, agriculture and the environment, its public perception has always been an issue. In your OWN views, discussthe possible social and ethical implications that could make the public hesitant to accept some products of recombinant DNA technology
QUESTION 25 During lagging strand synthesis of DNA, the RNA primers are replaced with DNA by __________. DNA Polymerase I DNA Polymerase II DNA Polymerase III Primase
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 NO. 1 Antisense nucleic acids A. complementary to mRNA would enhance translation . B. could result if a gene is inserted downstream of a promoter but in opposite direction to normal. C. can have no clinical uses. D. react only with DNA. E. are necessary for recombinant DNA technology. QUESTION NO. 2 There is a window in which the effect is primarily on viral replication since AZT is much less effective at competing with dTTP for incorporation by cellular DNA polymerases because of the proofreading ability of DNA polymerases. Proofreading activity co maintain the fidelity of DNA synthesis A. occurs after the synthesis has been completed. B. is a function of 3' co 5' exonuclease activity intrinsic to or associated with DNA polymerases. C. requires the presence of an enzyme separate from the DNA polymerases. D. removes mismatched bases in the interior of the chain. E. does nor occur in prokaryotes.
QUESTION NO. 1 Antisense nucleic acids A. complementary to mRNA would enhance translation . B. could result if a gene is inserted downstream of a promoter but in opposite direction to normal. C. can have no clinical uses. D. react only with DNA. E. are necessary for recombinant DNA technology.QUESTION NO. 2 There is a window in which the effect is primarily on viral replication since AZT is much less effective at competing with dTTP for incorporation by cellular DNA polymerases because of the proofreading ability of DNA polymerases. Proofreading activity co maintain the fidelity of DNA synthesis A. occurs after the synthesis has been completed. B. is a function of 3' co 5' exonuclease activity intrinsic to or associated with DNA polymerases. C. requires the presence of an enzyme separate from the DNA polymerases. D. removes mismatched bases in the interior of the chain. E. does nor occur in prokaryotes. QUESTION NO. 3…
Question Number-1: Using complementary base pairing method, convert the following DNA sequence into RNA sequence. DNA: TACGGCGCGTATACGACT
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 1. Although we will not be doing a gel electrophoresis, data from a gel digest of a Bacillus anthrax plasmid is provided so you can do a DNA map. The Bacillus anthrax plasmid is 4000bp (4Kb) long. Note the origin position as well as the reference molecular weight markers on the gel. Two restriction enzymes, A and B, were used to obtain two individual digests, A and B. They were combined to produce the third digest. The restriction enzyme fragment pattern for the digest of Bacillus anthrax plasmid Determining the Number of Fragments How many fragments were produced by enzyme A? How many fragments were produced by enzyme B? How many fragments were produced by the combined digest (A and B)? Fragment Size Fragment size is relative to molecular weight, and must be determined by comparing the fragment distance to the molecular weight markers. The fragment size has been provided on the gel pattern for this exercise. To make a map you must determine the relative positions of the…
Question 41 Redundancy in the genetic code means: Question 41 options: that many base substitutions in coding DNA are synonymous (silent) and do not affect the protein sequence that DNA sequence variations always affect the protein sequence DNA sequence is redundant protein translation is independent of the genetic code Question 42 The mismatch repair (MMR) components work closely with the DNA replication machinery. Question 42 options: True False Question 43 Following could be classified as mutagens except: Question 43 options: Non-ionizing ultraviolet radiation X-rays, gamma rays White light Harmful chemicals
QUESTION NO. 1 Base excision repair A. is used only for bases that have been deaminated. B. uses enzymes called DNA glycosylases to generate an abasic sugar site. C. removes about 10 to 15 nucleotides. D. does not require an endonuclease. E. recognizes a bulky lesion. QUESTION NO. 2 Termination of a prokaryotic transcriptA. is a random process. B. requires the presence of the rho subunit of the holoenzyme. C. does not require rho factor if the end of the gene contains a G-C rich palindrome. D. is most efficient if there is an A-T-rich segment at the end of the gene. E. requires an ATPase in addition to rho factor. QUESTION NO. 3 Eukaryotic transcription A. is independent of the presence of upstream consensus sequences. B. may involve a promoter located within the region transcribed rather than upstream. C. requires a separate promoter region for each of the three ribosomal RNAs transcribed. D. requires that…
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