Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13, Problem 3CONQ
According to the adaptor hypothesis, is each of the following statements true or false?
A. The sequence of anticodons in tRNA directly recognizes codon sequences in mRNA, with some room for wobble.
B. The amino acid attached to the tRNA directly recognizes codon sequences in mRNA.
C. The amino acid attached to the tRNA affects the binding of the tRNA to a codon sequence in mRNA.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
For each of the following, identify the type of RNA involved (mRNA, rRNA, or tRNA). a. Transports the correct amino acid to the ribosome, using the information encoded in the mRNA. b. Is a major component of ribosomes. c. Specifies the order of amino acids in a protein, using a series of three-base codons, where different amino acids are specified by particular codons. d. Contains a three-base anticodon that pairs with a complementary codon revealed in the mRNA. e. Assists in making the bonds that link amino acids together to make a protein.
The addition of the poly-A tail adds more than 200 units of adenine to the strand of mRNA, yet no protein has a continuous line of more than 200 phenylalanines in its structure. Why is this so?
A. RNA splicing occurs and removes the noncoding sequences.
B. The poly-A tail and 5' GTP cap do not translate into proteins.
C. The adenines are reabsorbed by the cell and help to form other forms of RNA.
D. The tRNA does not recognize the poly-A tail.
According 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.
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A few genes produce regulatory molecules that help the cell assemble proteins. The journey from gene to protein is complex and tightly controlled within each cell. Which of the following statements best describes the role of DNA and RNA in protein synthesis? * A. DNA is the primary genetic material contained within a cell. B. DNA is the long-term storage while RNA is the messenger containing instruction from DNA C. DNA creates protein during protein synthesis & converts it into usable molecules while RNA assembles amino acid into a protein. D. All of the above. Humans and chimpanzees share many common characteristics. How would you explain the similarities of the amino acid sequences that can be found in both organisms? * A. Two groups share a relatively common ancestor B. Humans evolved from chimpanzees C. Two groups belong to the same species D. Chimpanzees evolved from…arrow_forwardPlease consider the figure below. a. Give the name of the process illustrated in the figure. b. If this is part of the elongation stage, explain what is going to happen next. Use the labels, A, B and/or C to answer the question. c. What type of enzyme is involved in the process described in (b)? d. What terminus of the protein is represented by label A?arrow_forwardPlease consider the figure below. a. Give the name of the process illustrated in the figure. b. If this is part of the elongation stage, explain what is going to happen next. Use the labels, A, B, C and/or D to answer the question. C. What terminus of the protein is represented by the amino acid represented by label D?arrow_forward
- Which of the following is TRUE in translation? A. Amino acyl TRNA containing one amino acid is attached to the P site B. Amino acids/peptides attached to the amino acyl tRNA at the P site are transferred to amino acids at the A site, followed by translocation. C. Empty TRNAS are immediately released from the ribosomes D. The E site is always empty after translocation to receive incoming empty TRNAS. E. The anticodon binding to the codon is stringent, i.e. there must be complete complementary base-pairing between the bases in the codon and anticodon before translation can proceed.arrow_forwardThe sequence of bases in a sample of MRNA was found to be: GGU,AAU,CCU,UUU,GUU,ACU,CAU,UGU a Deduce the sequence of amino acids this codes for. b Determine the sequence of bases in the coding strand of DNA from which this MRNA was transcribed. c Within a cell, state where the triplet codes, codons and anticodons are found.arrow_forwardThe figure below shows two tRNA molecules preparing to deliver amino acids to an MRNA molecule. Using the anticodons indicated, fill in the blanks with the correct codon sequence and name the amino acids that apply. ,A AG GG C Codons: a. MRNA 5'1 3' Amino acids: C. d. a) b) c) d)arrow_forward
- The fourth codon in an mRNA sequence is GGG, which specifies glycine. If we assume that no amino acids are removed from the polypeptide, which of the following statements is correct? a. The third amino acid from the N-terminus is glycine. b. The fourth amino acid from the N-terminus is glycine. c. The third amino acid from the C-terminus is glycine. d. The fourth amino acid from the C-terminus is glycine.arrow_forwardThe 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_forwardWhich 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_forward
- Suppose that a gene underwent a mutation that changed a GAA codon to UAA. (a) Name the amino acid encoded by the original triplet. (b) Identify a tRNA anticodon that could translate the nonsense UAA triplet. (c) What other amino acid could be encoded by the mutant tRNA?arrow_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_forwardA certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY