Microbiology With Diseases By Taxonomy (6th Edition)
6th Edition
ISBN: 9780134832302
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 7, Problem 22MC
Summary Introduction
Introduction:
RNA is an important
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Which of the following describes the interactions between a codon and an anticodon?
A. A codon and an anticodon become covalently bonded together due to the activity of the ribosome.
B. A codon and anticodon do not come into direct contact because codons are in the nucleus but anticodons are in the cytoplasm.
C. A codon and anticodon are attracted to each other due to hydrogen bonding.
D. A codon and an anticodon are linked together by an amino acid.
..
In translation of an mRNA into a protein, the first amino acid that is attached to the start codon is which of the following?
a. O-formylmethionine
b. Serine
c. N-formylmethione
d. Cysteine
Degeneracy of the genetic code denotes the existence of which of the
following?
A. codons that can wobble at the 5' position
B. multiple codons for a single amino acid
C. codons consisting of only two bases
D. base triplets that do not code for any amino acid
E. codons that are not overlapping
Chapter 7 Solutions
Microbiology With Diseases By Taxonomy (6th Edition)
Ch. 7 - DNA replication requires a large amount of energy,...Ch. 7 - In bacteria, polypeptide translation can begin...Ch. 7 - Prob. 3TMWCh. 7 - Prob. 4TMWCh. 7 - Clinical Case Study Deadly Horizontal Gene...Ch. 7 - Which of the following is most likely the number...Ch. 7 - Which of the following is a true statement...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Prob. 5MC
Ch. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MCCh. 7 - Which of the following is not a mechanism of...Ch. 7 - Prob. 12MCCh. 7 - Prob. 13MCCh. 7 - Which of the following are called jumping genes?...Ch. 7 - Prob. 15MCCh. 7 - Prob. 16MCCh. 7 - Prob. 17MCCh. 7 - Prob. 18MCCh. 7 - Prob. 19MCCh. 7 - Prob. 20MCCh. 7 - Prob. 21MCCh. 7 - Prob. 22MCCh. 7 - Prob. 23MCCh. 7 - Prob. 24MCCh. 7 - The trp operon is repressible. This means it is...Ch. 7 - The three steps in RNA transcription are...Ch. 7 - Prob. 2FIBCh. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - An operon consists of ____________,...Ch. 7 - Prob. 6FIBCh. 7 - A daughter DNA molecule is composed of one...Ch. 7 - Prob. 8FIBCh. 7 - Prob. 9FIBCh. 7 - ____________ is a recombination event that occurs...Ch. 7 - Prob. 11FIBCh. 7 - Prob. 12FIBCh. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - Prob. 3SACh. 7 - Polypeptide synthesis requires large amounts of...Ch. 7 - Prob. 5SACh. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Describe how DNA is packaged in both prokaryotes...Ch. 7 - Prob. 10SACh. 7 - Prob. 11SACh. 7 - Prob. 12SACh. 7 - On the figure below, label DNA polymerase I, DNA...Ch. 7 - Prob. 2VICh. 7 - Prob. 3VICh. 7 - If molecules of mRNA have the following nucleotide...Ch. 7 - A scientist uses a molecule of DNA composed of...Ch. 7 - Prob. 3CTCh. 7 - Prob. 4CTCh. 7 - Prob. 5CTCh. 7 - Suppose that the E. coli gene for the lac operon...Ch. 7 - Prob. 7CTCh. 7 - Prob. 8CTCh. 7 - Prob. 9CTCh. 7 - How can knowledge of nucleotide analogs be useful...Ch. 7 - The endosymbiotic theory states that mitochondria...Ch. 7 - Prob. 12CTCh. 7 - Prob. 13CTCh. 7 - Prob. 14CTCh. 7 - What DNA nucleotide triplet codes for codon UGU?...Ch. 7 - Prob. 17CT
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- The AUC and AUA codons in mRNA both specify isoleucine. What feature of the genetic code explains this? a. complementarity b. nonsense codons c. universality d. degeneracyarrow_forwardWhich of the following amino acid is acetylated when DNA is unwound from histones? a. Asparagine b. Lysine c. Arginine d. Glycinearrow_forwardDetermine which amino acid is formed from the following mRNA codon: GUA. a aspartic acid b glutamic acid c phenylalanine d valinearrow_forward
- Which of the following regions on the tRNA are composed of a sequence of nucleotides? a. anticodon that binds to codon in mRNA b. anticodon that binds to codon in ribosomes c. anticodon that binds to codon in tRNA synthetase d. none of the abovearrow_forwardWhich of the following most accurately describes the anticodon? A. Contains a sequence complementary to the codon. B. Reintroduces thymine back into the sequence and removes uracil. C. Contains the sequence in the reverse orientation (3-5 vs 5-3). D. Contains a sequence identical to the codon.arrow_forwardA DNA antisense strand contains the following nucleotide base sequence: AGT GTC TTT GAC From this, what is the nucleotide sequence of the mRNA strand that is transcribed? a. AGU GUC UUU GAC b. UCU CUG UUU CAG UCA CAG AAA CUG d. TCA CAG AAA CTG C. How many amino acids does the mRNA strand above code for? .arrow_forward
- Which of the following steps in protein synthesis does not require a direct supply of energy? a. proofreading step by certain aminoacyl-tRNA synthetases b. translocation of mRNA in a ribosome c. linkage of an amino acid to its cognate tRNA d. alignment of a tRNA anticodon with an mRNA codonarrow_forwardWhich of the following is a true statement concerning RNA? Group of answer choices a. mRNA is single stranded; tRNA and rRNA are double stranded b. each tRNA binds to a specific amino acid c. rRNA and mRNA last for only a short time in the cell d. tRNA contains the base thyminearrow_forwardThe role of transfer RNA (tRNA) is to match a codon (3 bases) in mRNA sequence to: A. An amino acid B. A peptide bond C. An R group D. A start codonarrow_forward
- Which of the following BEST describes the characteristics and function of siRNA? A. a short strand of RNA that can complement and inactivate a sequence of mRNA B. a short strand of RNA that can act as a transcription factor to initiate transcription C. a strand of DNA that can bind to and inactivate an mRNA sequence D. a tRNA that is not able to attach to a ribosome and therefore inhibits the process of translationarrow_forwardWhich of the following nucleic acids is a component of ribosomes? a.DNA b.Transfer RNA c.Ribosomal RNA d.Messenger RNAarrow_forwardWhich of the following statements about mRNA is INCORRECT? A. the sugar moiety of mRNA is D-ribose B. the polynucleotide chain contains sequences made up of three bases called codons C. MRNAS have a 5'03' orientation D. all mRNAs have lengths equal to the DNA from which it is transcribed E. MRNA exists as single stranded moleculearrow_forward
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