Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 13.4, Problem 2COMQ
The anticodon of a tRNA is located in the
a. 3′ single-stranded region of the acceptor stem.
b. loop of the first stem-loop.
c. loop of the second stem-loop.
d. loop of the third stem-loop.
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The anticodon of a tRNA is located in the
a. 3′ single-stranded region of the acceptor stem.
b. loop of the first stem-loop.
c. loop of the second stem-loop.
d. loop of the third stem-loop.
Which of the following are elongation factors involved in the release of free tRNAs?
a.EF-G
b.EF-Ts
c.EF-Tu
d.EF-P
tRNAs
a. carry amino acids
b. bind to the anticodon present in the mRNA
c. adapt the genetic information to the ribosome
d. catalyze the peptide bond
Chapter 13 Solutions
Genetics: Analysis and Principles
Ch. 13.1 - Prob. 1COMQCh. 13.1 - 2. The reason why Beadle and Tatum observed four...Ch. 13.2 - What is the genetic code? a. The relationship...Ch. 13.2 - Prob. 2COMQCh. 13.2 - The fourth codon in an mRNA sequence is GGG, which...Ch. 13.2 - Prob. 4COMQCh. 13.3 - Prob. 2COMQCh. 13.4 - Prob. 1COMQCh. 13.4 - 2. The anticodon of a tRNA is located in the
a....Ch. 13.4 - An enzyme known as _______attaches an amino acid...
Ch. 13.5 - Each ribosomal subunit is composed of a. multiple...Ch. 13.5 - Prob. 2COMQCh. 13.6 - 1. During the initiation stage of translation in...Ch. 13.6 - The Kozak rules determine a. the choice of the...Ch. 13.6 - During the peptidyl transfer reaction, the...Ch. 13.6 - A release factor is referred to as a molecular...Ch. 13 - Prob. 1CONQCh. 13 - What does it mean when we say that the genetic...Ch. 13 - According to the adaptor hypothesis, is each of...Ch. 13 - Prob. 4CONQCh. 13 - Prob. 5CONQCh. 13 - 6. The wobble rules for tRNA-mRNA pairing are...Ch. 13 - Prob. 7CONQCh. 13 - Prob. 8CONQCh. 13 - Prob. 9CONQCh. 13 - If a tRNA has an anticodon sequence 3CCI5, what...Ch. 13 - Describe the anticodon of a single tRNA that could...Ch. 13 - Prob. 12CONQCh. 13 - Prob. 13CONQCh. 13 - 14. What is the role of aminoacyl-tRNA synthetase?...Ch. 13 - Prob. 15CONQCh. 13 - 16. Discuss the significance of modified bases...Ch. 13 - How and when does formylmethionine become attached...Ch. 13 - Prob. 18CONQCh. 13 - Prob. 19CONQCh. 13 - Prob. 20CONQCh. 13 - The term subunit can be used in a variety of ways....Ch. 13 - 22. Do the following events during bacterial...Ch. 13 - 23. What are the three stages of translation?...Ch. 13 - Prob. 24CONQCh. 13 - 25. For each of the following initiation factors,...Ch. 13 - Prob. 26CONQCh. 13 - 27. For each of the following sequences, rank them...Ch. 13 - Prob. 28CONQCh. 13 - Prob. 29CONQCh. 13 - Prob. 30CONQCh. 13 - Prob. 31CONQCh. 13 - In which of the ribosomal sites, the A site, P...Ch. 13 - Prob. 33CONQCh. 13 - Prob. 34CONQCh. 13 - Prob. 35CONQCh. 13 - Prob. 36CONQCh. 13 - Prob. 37CONQCh. 13 - 1. In the experiment of Figure 13.7, what would be...Ch. 13 - 2. Polypeptides can be translated in vitro. Would...Ch. 13 - Discuss how the elucidation of the structure of...Ch. 13 - Describe the structure of a polysome, which is...Ch. 13 - Prob. 5EQCh. 13 - 6. The technique of Western blotting is described...Ch. 13 - The protein known as tyrosinase is needed to make...Ch. 13 - Prob. 8EQCh. 13 - Discuss why you think the ribosomes need to...Ch. 13 - 2. Discuss and make a list of the similarities...Ch. 13 - 3. Which events during translation involve...
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- Which part of a tRNA molecule acts as an amino acid attachment site? a. the 5' end b. the 3' end c. the anticodon d. any of thesearrow_forwardIn which site(s) of the ribosome could you find a tRNA with more than one amino acid bound (a peptidyl- TRNA)? a. In both the E- and P-sites. b. In both the A- and P-sites. С. Only in the A-site. d. Only in the P-site. e. Only in the E-site.arrow_forwardWhat site on the ribosome is the place where a tRNA molecule leaves the ribosome after attaching its amino acid to the growing chain of amino acids? a. E site b. P site c. A site d. the small ribosomal subunit Please respond as soon as possiblearrow_forward
- Choose the correct function of tRNA. A. TRNAS are an intermediate stage of RNA processing where introns have been removed but polyadenylation has not occurred yet B. TRNAS are small RNAS that regulate gene expression C. TRNAS bring amino acids to the ribosome for addition to the growing polypeptide chain D. tRNA is a major structural component of the ribosomearrow_forwardWhich translation factor mediates the aminoacyl-tRNA entry into the A site of the ribosome? A. EF-Tu B. EF-Ts C. EF-G D. IF1arrow_forwardThe codon and anticodon are base-paired together during the process of translation. Which of the following is correct regarding the relationship between anticodon and codon? A. The tRNA anticodon UCU pairs with the AGA mRNA codon. B. The tRNA anticodon is read from the 5’ to the 3’ end. C. A tRNA anticodon can pair with only one mRNA codon. D. The mRNA codon ACG base pairs with the tRNA anticodon TGC.arrow_forward
- The peptide bond formation is catalyzed by a. the aminoacyl tRNA synthetase b. tRNA c. the small ribosomal subunit d. the large ribosomal subunitarrow_forwardAccording to the adaptor hypothesis, is each the following statementstrue or false?A. The sequence of an anticodon in a tRNA directly recognizes acodon sequence in mRNA, with some allowance for wobble.B. The amino acid attached to the tRNA directly recognizes acodon sequence in mRNA.C. The amino acid attached to the tRNA affects the binding of thetRNA to a codon sequence in mRNA.arrow_forwardExamine the following base sequence – 5’ UGA 3’. It represents the anticodon region of a particular tRNA. Based on this knowledge you know that a. This tRNA would be used to stop translation. b. This tRNA would carry the amino acid Serine to the ribosome. c. This tRNA would carry the amino acid Threonine to the ribosome. d. This tRNA would bind a TCA codon on DNA. e. This tRNA would not carry any amino acid to the ribosome. f. This tRNA would carry the amino acid Leucine to the ribosome.arrow_forward
- The aminoacyl-tRNA synthetase enzymes are responsible for: O A. matching each tRNA with the appropriate mRNA codon. O B. catalyzing the enzymatic step of peptide bond formation during translation. O C. synthesizing tRNA molecules in the nucleus from tRNA genes. O D. adding amino acids to appropriate tRNAS (charging the tRNA). O E. regulating the process of amino acid synthesis.arrow_forwardWhat happens when EF-Tu is mutated A. Be involved in transcription instead of translation B. Peptide bond formation is inhibited C. Incoming tRNA will not be able to enter through the A site D. Incoming tRNA will not be able to enter through the P sitearrow_forwardThere are 61 mRNA codons that specify an amino acid, but only 45 tRNAs. This is best explained by the fact that A. some tRNAs have anticodons that recognize two or more different codons. B. the rules for base pairing between the third base of a codon and tRNA are flexible. C. many codons are never used, so the tRNAs that recognize them are dispensable. D. A and B only E. A, B, and Carrow_forward
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