Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Textbook Question
Chapter 13, Problem 3MC
A stop codon
a. signals the end of protein synthesis on a ribosome.
b. codes for the amino acid methionine.
c. signals the end of RNA synthesis.
d. marks the boundary between an exon and an intron.
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What is the genetic code?
a. The relationship between a three-base codon sequence and an amino acid or the end of translation
b. The entire base sequence of an mRNA molecule
c. The entire sequence from the promoter to the terminator of a gene
d. The binding of tRNA to mRNA
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 translation
What process is the P site in a ribosome most closely associated with?
a.
Binds the tRNA molecule carrying the next needed amino acid to the mRNA strand
b.
Transcription of DNA to RNA
c.
Release of a tRNA molecule from a ribosome
d.
Anchoring of the tRNA holding the growing polypeptide
Chapter 13 Solutions
Biology: Life on Earth (11th Edition)
Ch. 13 - 1. The molecule that carries the genetic...Ch. 13 - 2. Which of the following is not true of...Ch. 13 - 3. A stop codon
a. signals the end of protein...Ch. 13 - Prob. 4MCCh. 13 - Epigenetic modification of gene expression a....Ch. 13 - Prob. 1FTBCh. 13 - The three types of RNA that are essential for...Ch. 13 - 3. The genetic code uses______ (how many?) bases...Ch. 13 - The enzyme_______ synthesizes RNA from the...Ch. 13 - Prob. 5FTB
Ch. 13 - Prob. 6FTBCh. 13 - How does RNA differ from DNA?Ch. 13 - Prob. 2RQCh. 13 - Define the following terms: genetic code, codon,...Ch. 13 - 4. How is mRNA formed from a eukaryotic gene?
Ch. 13 - 5. Diagram and describe protein synthesis.
Ch. 13 - 6. Explain how complementary base pairing is...Ch. 13 - 7. Describe the principal mechanisms of regulating...Ch. 13 - Define mutation. Describe four different effects...Ch. 13 - Many years ago, some researchers reported that...Ch. 13 - Prob. 2AC
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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
- _______ are removed from new mRNAs. a. Introns c. Poly-A tails b. Exons d. Amino acidsarrow_forwardA promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA nucleotides c. a protein that binds to DNA d. an enzyme that synthesizes RNAarrow_forwardWhich statement regarding UTRs is TRUE? a) Transcription begins at the start of the 5' UTR b) Translation begins at the start of the 5' UTR c) The 5' and 3' UTRs are spliced from the mRNA transcript d) The translation stop codon is found downstream of the 3' UTRarrow_forward
- The role of p53 in normal cells is toa. create cancer-blocking mutations.b. trigger unrestrained cell division.c. detect damaged DNA.d. splice exons together in the correct sequence.arrow_forwardThe function of the genetic code is toa. promote transcription.b. specify the amino acids within a polypeptide.c. alter the sequence of DNA.d. do none of the above.arrow_forwardIn the chain elongation of proteins, the new aminoacyl-tRNA bonds to? a.A site b.E site c.G site d.P sitearrow_forward
- To facilitate movement of mRNA from the nucleus into the cytoplasm, what is added to the 3’ end of mRNA? a) Ribosomes b)Transcription factors c) A cap of modified nucleotides d) Modified tRNA molecules e) A Poly-a-tailarrow_forwardWhich statement is true of the translocation phase of elongation during protein synthesis? a. The empty tRNA moves to the A site of the ribosomal complex. b. The empty tRNA moves to the T site of the ribosomal complex. c. The dipeptide moves from the A site to the P site of the ribosomal complex. d. The dipeptide moves from the P site to the A site of the ribosomal complex.arrow_forwardA particular tRNA is mutated so that the amino acid attachment cannot bind with the aminoacyl-tRNA synthase. What happens when an mRNA transcript contains the codon for this tRNA? A. The tRNA will not bind to this codon. B. Translation stops and the protein is released. C The wrong tRNA is added to the protein chain. D. Translation stops and the protein remains bound to the ribosome.arrow_forward
- Which is true about eukaryotic cDNA? Choose all that apply a. it is single stranded b. it is made up of only introns c. it is constructed from mRNA that is reverse transcribed d.arrow_forwardDuring translation, the codon in mRNA is actually “read” by a. the A site in the ribosome. b. the P site in the ribosome. c. the anticodon in a tRNA. d. the anticodon in an amino acid.arrow_forwardWhich of the following best describes mRNA?Group of answer choices a) Complexes with ribosomal proteins to form ribosomes b) Transports amino acids to ribosomes during translation c) Provides the instructions for the amino acid sequence of a polypeptide d) Used for eukaryotic RNA processingarrow_forward
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