Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 15, Problem 2A
The splicing process
a. occurs in prokaryotes.
b. joins introns together.
c. can produce multiple mRNAs from the same transcript.
d. only joins exons for each gene in one way.
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Students have asked these similar questions
Which of the following statements about the spliceosome is false?
a. A spliceosome splices pre-mRNA molecules.
b. A spliceosome removes exons from RNA molecules.
c. A spliceosome is composed of snRNPs.
d. A spliceosome recognizes the exon-intron boundaries and the branch site.
A geneticist induces a mutation in eukaryote cells. The mutation results in an inability to form the poly(A) tail during processing of pre-mRNA. What does this mean for the mature mRNA and what will be the effect on these cells?
Possible Answers:
A. The mRNA will be spliced, but will not have a 5' cap.
B. The mRNA will likely be degraded.
C. The mRNA will not be cleaved.
D. The mRNA will have too many Gs and Cs.
Which of the following statements are NOT true?
A. Replication is the process of making DNA and takes place in the nucleus of prokaryotic cells.
B. Translation produces a polypeptide that may require additional processing to become a functional protein
C. Transcription starts at the promoter of eukaryotic cells and scans until reaches the start codon.
D. Splicing results in exons being put together and introns being removed
Chapter 15 Solutions
Biology with Connect Access Card
Ch. 15 - The experiments with nutritional mutants in...Ch. 15 - What is the central dogma of molecular biology? a....Ch. 15 - In the genetic code, one codon a. consists of...Ch. 15 - Eukaryotic transcription differs from prokaryotic...Ch. 15 - An anticodon would be found on which of the...Ch. 15 - RNA polymerase binds to a ________ to initiate...Ch. 15 - During translation, the codon in mRNA is actually...Ch. 15 - You have mutants that all affect the same...Ch. 15 - The splicing process a. occurs in prokaryotes. b....Ch. 15 - The enzyme that forms peptide bonds is called...
Ch. 15 - In comparing gene expression in prokaryotes and...Ch. 15 - The codon CCA could be mutated to produce a. a...Ch. 15 - An inversion will a. necessarily cause a mutant...Ch. 15 - What is the relationship between mutations and...Ch. 15 - Prob. 1SCh. 15 - Frameshift mutations often result in truncated...Ch. 15 - Describe how each of the following mutations will...Ch. 15 - There are a number of features that are unique 10...
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- Alternate splicing: A. Reduces mRNA half-life by shortening poly(A) tails B. Disrupts histone arrangement for increased transcription C. Uses topoisomerase to complete its function D. Can produce 2 or more products from one genearrow_forwardtRNAs a. carry amino acids b. bind to the anticodon present in the mRNA c. adapt the genetic information to the ribosome d. catalyze the peptide bondarrow_forwardEukaryotic mRNA is capped at the 5' end by: a. adding a poly A sequence to the 5' end. b. ligating a 7-methylguanylate via a 3’ linkage. c. methylating the base pairs near the 5’ end. d. forming a lariat structure via transesterification.arrow_forward
- In prokaryotes, control of gene expression usually occurs at the a. splicing of pre-mRNA into mature mRNA. b. initiation of translation. c. initiation of transcription. d. All of the choices are correct.arrow_forwardWhat is one function of the 5' cap in eukaryotic mRNA? Select one: a. It is involved in translation termination. b. It is an intron splicing signal. c. It is the initial attachment site for ribosomes. d. It is involved in polyadenylation of the 5' end of the mRNAarrow_forwardEukaryotic mRNAs differ from prokaryotic mRNAs in that they a. usually contain more than one gene. b. are colinear with the genes that encode them. c. are not colinear with the genes that encode them. d. Both a and c are correct.arrow_forward
- Which of the following is not a function of the 5’ cap and 3’ poly-A tail of a mature eukaryotic mRNA molecule? a. To facilitate splicing b. To prevent mRNA degradation c. To aid export of the mature transcript to the cytoplasm d. To aid ribosome binding to the transcriptarrow_forwardWhy might a single base-pair mutation in eukaryotic mRNA be less serious than one in prokaryotic mRNA? a. If the mutation occurs in the 5' end of the start site, it will not affect the gene product. b. If the mutation occurs in the exon, it will not affect the gene product. c. If the mutation occurs in the splice site of a transcript with alternative splicing, only one gene product may affected. O d. If the mutation occurs in the intron or not in the splice site of a transcript with alternative splicing, it will nc affect the gene product. O e. If the mutation occurs in the 3' end of the start site, it will not affect the gene product. OLIE STIC N 1Aarrow_forwardWhich of the following is an RNA processing event that increases the number of potential polypeptides that can be encoded by a single gene. a. transcription b. alternative splicing c. alternative transcription d. polyadenylationarrow_forward
- During RNA splicing a. All exons are removed and degraded in the cell b. mRNA is made from DNA template c. Introns are removed from the mRNA and the exons are spliced together d. mRNA is translated into a protein moleculearrow_forwardWhich of the following is true about the three major classes of RNAs in the cell: mRNAs, tRNAs, and rRNAs? A. mRNAs encode polypeptide chains. B. tRNAs are structural components of the ribosome. C. rRNAs are adapter molecules that translate the information on an mRNA into a polypeptide sequence. D. mRNAs can also encode tRNAs and rRNAs.arrow_forwardIn eukaryotes, the mRNA is usually smaller than the gene, this is due to a. splicing b. transcription c. the presence of exons d. the poly A tailarrow_forward
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