BROOKER BIOLOGY
5th Edition
ISBN: 9781307656152
Author: BROOKER
Publisher: MCG/CREATE
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Chapter 12, Problem 9TY
Summary Introduction
Introduction: The initiation of the translational process involves the binding of the tRNA with the mRNA at three sites. The binding tRNA serves as the intermediate for the mRNA and amino acid chain. The initiation of translation requires the binding of the complementary mRNA codon with the anticodon of the tRNA. Hence, tRNA serves as the translator of various codons into the amino acid. The protein synthesis begins with the binding of the tRNA with mRNA at three sites.
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Students have asked these similar questions
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.
The enzyme Aminoacyl tRNA synthetase
a. is very specific, recognizes only amino acids
b. adds amino acids to the tRNA anticodon
c. is very specific, there is only one enzyme per cell
d. is very specific, recognizes only one amino acid
Which of the following is/are required in the amino acid activation by aminoacyl-tRNA synthetase?
A. tRNA
B. Mg2+
C. GTP
D. mRNA
E. amino acid
F. ATP
G. rRNA
Chapter 12 Solutions
BROOKER BIOLOGY
Ch. 12.1 - What disease would result if a person inherited...Ch. 12.1 - Prob. 2CCCh. 12.1 - What is the direction of flow of genetic...Ch. 12.2 - Core Skill: Connections Look back at the role of...Ch. 12.3 - Prob. 1CCCh. 12.4 - Prob. 1CCCh. 12.4 - Prob. 1EQCh. 12.4 - Prob. 2EQCh. 12.4 - Prob. 3EQCh. 12.5 - Core Skill: Connections Look back at Figure 6.3,...
Ch. 12.5 - Prob. 2CSCh. 12.6 - Prob. 1CCCh. 12 - Which of the following best represents the central...Ch. 12 - A mutation prevents a gene from being transcribed...Ch. 12 - Prob. 3TYCh. 12 - Prob. 4TYCh. 12 - If a eukaryotic mRNA failed to have a cap attached...Ch. 12 - Prob. 6TYCh. 12 - Prob. 7TYCh. 12 - During the initiation of translation, the first...Ch. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - Prob. 1CQCh. 12 - Prob. 2CQCh. 12 - Prob. 3CQCh. 12 - Prob. 1COQCh. 12 - Prob. 2COQ
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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
- 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.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_forwardWhich of the following is true about tRNA? Select one: A. All tRNAs have a CCA sequence at the 3'-end. B. All tRNAs have a CCG sequence at the 5'-end. C. All tRNAs have a CAC sequence at the 3'-end. D. All tRNAs have a CCA sequence at the 5'-end. E. All tRNAs have a CCG sequence at the 3'-end.arrow_forward
- The “A” site in the ribosome refers to the: A. binding site for charged t-RNA molecules during protein synthesis B. Site that allows for tRNAs to exit C. a site that holds the tRNA which is linked to the growing polypeptide chain D. none of these answeresarrow_forwardWhich 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. ..arrow_forwardThe primary function of RF1 during translation is to: a. recognize a stop codon in the 70S A site during termination. b. recognize the start codon in the 70S P site during initiation. c. move tRNAs and mRNA through the ribosome during elongation. d. facilitate binding of the ribosome to mRNA during initiation.arrow_forward
- 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.arrow_forwardWhich 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 best describes the initiation of translation? A. The mRNA binds the large ribosomal subunit. The start codon is identified and an rRNA with methionine is bound to the start codon. B. The mRNA binds the small ribosomal subunit. The start codon is identified and the large subunit is recruited. C. The mRNA binds the small ribosomal subunit. The start codon is identified and a tRNA with methionine is bound to the start codon. D. The mRNA binds the small ribosomal subunit. The start codon is identified and the tRNA with methionine enters the A site.arrow_forward
- Which of the following best describes tRNA? a. Provides the instructions for the amino acid sequence of a polypeptide b. Complexes with ribosomal proteins to form ribosomes c. Used for eukaryotic RNA processing d. Transports amino acids to ribosomes during translationarrow_forwardA release factor is referred to as a “molecular mimic” because its structure is similar to a. a ribosome. b. an mRNA. c. a tRNA. d. an elongation factor.arrow_forwardPut the events of translation in order. A. Ribosome reads the start codon and initites transcription B. The ribosome recruits the correct tRNA to its binding site. C. Peptide bond occurs betweeen two amino acids D. The "empty" tRNA leaves the ribosomesarrow_forward
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