Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10, Problem 1CCQ
Let’s suppose a gene mutation changed the sixth codon from one that specifies lysine to a stop codon. How would this mutation affect transcription? How would it affect translation?
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You are searching the sequence of a coding strand of DNA. What kinds of sequences would help you find the beginning of a protein-coding gene?
Group of answer choices
a promoter sequence upstream (to the 5' end) of a transcription start site and an ATG sequence corresponding to the start codon
a transcription termination sequence
a silencer sequence
an ATA sequence corresponding to the codon for isoleucine
You are studying the rate of transcription of a particular eukaryotic gene. When the DNA located several thousand bases upstream from the gene is removed, the transcription rate of the gene decreases dramatically. How would you interpret these results?
Which of the following is/are not necessary for transcription to occur?
A. Promoter region B. Terminator region C. Start codon D. Stop codon
Chapter 10 Solutions
Principles of Biology
Ch. 10.1 - What is the direction of flow of genetic...Ch. 10.1 - Prob. 1TYKCh. 10.1 - Prob. 2TYKCh. 10.1 - Prob. 3TYKCh. 10.2 - How would removing a terminator from a gene affect...Ch. 10.2 - Prob. 1BCCh. 10.2 - Prob. 1TYKCh. 10.2 - Prob. 2TYKCh. 10.3 - Do the ends of protein-encoding genes have a poly...Ch. 10.3 - The splicing of pre-mRNA in eukaryotes involves...
Ch. 10.3 - Prob. 2TYKCh. 10.4 - Prob. 1CCCh. 10.4 - Prob. 2CCCh. 10.4 - Prob. 1TYKCh. 10.4 - Prob. 2TYKCh. 10.5 - Prob. 1CCCh. 10.5 - Prob. 1BCCh. 10.5 - Based on the gene sequences shown here, pick two...Ch. 10.5 - Prob. 1TYKCh. 10.5 - Prob. 2TYKCh. 10.5 - Prob. 3TYKCh. 10.6 - Prob. 1CCCh. 10.6 - Prob. 1TYKCh. 10.6 - Prob. 2TYKCh. 10 - Which of the following best represents the central...Ch. 10 - Prob. 2TYCh. 10 - Prob. 3TYCh. 10 - Prob. 4TYCh. 10 - Prob. 5TYCh. 10 - Prob. 6TYCh. 10 - The legion of a tRNA that is complementary to a...Ch. 10 - Prob. 8TYCh. 10 - Prob. 9TYCh. 10 - Prob. 10TYCh. 10 - Lets suppose a gene mutation changed the sixth...Ch. 10 - What is the function of an aminoacyl-tRNA...Ch. 10 - A principle of biology is that the genetic...Ch. 10 - Prob. 1CBQCh. 10 - Prob. 2CBQ
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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
- If a mutation eliminated the start codon from a gene, howwould the mutation affect transcription, and how would it affect translation?arrow_forwardWhy will a mistake in the RNA code alone not become a mutation?arrow_forwardWhat would be the effect on reading frame and gene function if: Two bases were inserted into the middle of an mRNA? Three bases were inserted into the middle of an mRNA? One base was inserted into one codon? Two codons were subtracted from the first codon?arrow_forward
- Suppose that codons consisted of 4 nucleotides instead of 3 and that there were only 2 different bases. How many amino acids could be encoded by this variant of the genetic code?arrow_forwardA mutation within a gene sequence changes the start codon to a stop codon. How will this mutation affect the transcription of this gene?arrow_forwardA codon that specifies the amino acid Gly undergoes a single-base substitution to become a nonsense mutation. In accord with the genetic code, is this mutation a transition or a transversion? At which position of the codon does the mutation occur?arrow_forward
- The following diagram represents a transcription unit in a hypothetical DNA molecule. 5′ … TTGACA … TATAAT … 3′ 3′ … AACTGT … ATATTA … 5′ Q.Where, approximately, will the transcription start site be?arrow_forwardIf a mutation changed the start codon into a stop codon, would this mutation affect the length of the RNA? Explain.arrow_forwardWhat would be the effect on reading frame and gene function if:Answer each Two bases were inserted into the middle of an mRNA? Three bases were inserted into the middle of an mRNA? One base was inserted into one codon? Two codons were subtracted from the first codon?arrow_forward
- Bacteria use the same stop codons as eukaryotes. However, bacterial transcription is also terminated in places where the mRNA folds back on itself to form a hairpin-looped structure like the one shown below. How do you think that this structure stops transcription?arrow_forwardWhich is the correct option here? How can one primary transcript result in several polypeptides with different amino acid sequences. A. Phosphorylation of proteins after translation B. alternative splicing of exons C. An addition of polyA tail to mRNA D. Incorporation of an amino acid at a stop codonarrow_forwardTranscription factors usually contain one or more motifs that play key roles in their function. What is the function of the following motifs? A. Helix-turn-helix B. Zinc finger C. Leucine zipperarrow_forward
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