Genetics
6th Edition
ISBN: 9781260444971
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 1.1, Problem 3COMQ
The function of the genetic code is to
a. promote transcription.
b. specify the amino acids within a polypeptide.
c. alter the sequence of DNA.
d. none of the above.
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Students have asked these similar questions
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
A mutation that changes the sequence of nucleotides in a promoter would result in a change in
a.
The amino acid sequence of the corresponding protein
b.
The base sequence of the corresponding mRNA
c.
How frequently the corresponding gene is transcribed
d.
The fidelity of translation of the corresponding mRNA
1 points
Imagine that a mutation in a DNA molecule results in the codon CCU being changed to CCC. Both of these codons code for proline. The fact that more than one codon can code for the same amino acid is referred to as ___
a.
the ambiguity of the genetic code
b.
the redundancy of the genetic code
c.
the randomness of the genetic code
d.
mutations in the genetic code
Chapter 1 Solutions
Genetics
Ch. 1.1 - 1. Which of the following is not a constituent of...Ch. 1.1 - 2. A gene is a segment of DNA that has the...Ch. 1.1 - The function of the genetic code is to a. promote...Ch. 1.1 - The process of transcription directly results in...Ch. 1.2 - Gene expression can be viewed at which of the...Ch. 1.2 - 2. Variation in the traits of organisms may be...Ch. 1.2 - 3. A human skin cell has 46 chromosomes. A human...Ch. 1.2 - 4. Evolutionary change caused by natural selection...Ch. 1.3 - Which of the following is not a model organism? a....Ch. 1.3 - A person studying the rate of transcription of a...
Ch. 1.4 - The scientific method involves which of the...Ch. 1 - Pick any example of a genetic technology and...Ch. 1 - Prob. 2CONQCh. 1 - Most genes encode proteins. Explain how the...Ch. 1 - Prob. 4CONQCh. 1 - Prob. 5CONQCh. 1 - Prob. 6CONQCh. 1 - Prob. 7CONQCh. 1 - Your textbook describes how the detrimental...Ch. 1 - Prob. 9CONQCh. 1 - Prob. 10CONQCh. 1 - Prob. 11CONQCh. 1 - Prob. 12CONQCh. 1 - 13. With regard to biological evolution, which of...Ch. 1 - 14. What are the primary interests of researchers...Ch. 1 - What is a genetic cross?Ch. 1 - Prob. 2EQCh. 1 - Prob. 3EQCh. 1 - 4. Many organisms are studied by geneticists. Do...Ch. 1 - Prob. 5EQ
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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
- A 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_forwardThe ribosome is needed for translation of mRNA (a) because it has the enzyme for adding amino acids to the 5’ end of a tRNA (b) because the ribosomal RNA contains the codon which determines the sequence of amino acids in a protein (c) because it positions tRNA and mRNA so that correct pairing of codon and anti-codon can occur (d) because it has an enzyme that removes introns from mRNA (e) all of the abovearrow_forwardThe anticodon … A. is complementary to the mRNA B. is found on the ribosome C. is found on the tRNA D. A and Carrow_forward
- Post-translational modifications of proteins can affect which of the following? a. protein function b. transcriptional regulation c. chromatin modification d. all of the abovearrow_forwardWhich 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_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
- What is the role of transcription in the determination of the amino acid sequence of a polypeptide chain? A. It pairs anticodons and codons. B. It synthesizes an mRNA strand. C. It duplicates the information in DNA. D. It decodes the information from mRNA.arrow_forwardTo 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 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_forward
- The ribosome is needed for translation of mRNA (a) because it has the enzyme that forms peptide bonds between amino acids (b) because the ribosomal RNA contains the codon which determine the sequence of amino acids in a protein (c) because it contains the enzyme that links the amino acids and tRNA (d) because it has enzyme that removes introns from mRNA (e) all of the abovearrow_forwardAt what point in gene expression do you think the process could be regulated? Select all that apply: a) Before transcription begins. b) During the process of transcription. c) During the process of translation. d) After translation ends.arrow_forwardAfter transcription, the molecule that is formed is a.complementary to part of one strand of DNA. b.complementary to both strands of DNA. c.double-stranded and inside the nucleus. d.identical to an entire single strand of DNA.arrow_forward
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