Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 17, Problem 3TYK
Summary Introduction
Introduction:
Splicing is the process of removal of introns from the primary mRNA (messenger ribonucleic acid) molecule.
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Students have asked these similar questions
Within a cell, the amount of protein made using a given mRNA molecule depends partly on
A. the presence of certain transcription factors.
B. the rate at which the mRNA is degraded.
C. the degree of DNA methylation.
D. the number of introns present in the mRNA.
please explain which is correct and incorrect and why
Are the following statements TRUE or FALSE?a. Post-transcriptional RNA processing occurs in the cytoplasm of the cell.b. A primary RNA transcript is often much longer than the mature mRNA that leaves the nucleus.c. Both ends of a pre-mRNA are modified to facilitate RNA splicing.
Arrange the statements in their proper order by writing the corresponding letter
(e.g. A) for each statement in the space provided below.
A. The single-stranded RNA would complement the target RNA.
B. Gene expression is inactivated once the mRNA is no longer accessible for
translation.
C. The risk-induced silencing complex which is composed of RNA and protein
subunits is formed.
D. Double-stranded, non-coding RNA is cleaved by Dicer.
E. The mRNA can be cleaved or remain bound by the RISC.
1.
2.
3.
4.
5.
Chapter 17 Solutions
Biological Science (6th Edition)
Ch. 17 - Prob. 1TYKCh. 17 - CAUTION Where is the start codon located? a. at...Ch. 17 - Prob. 3TYKCh. 17 - Prob. 4TYKCh. 17 - 5. RNases and proteases are enzymes that destroy...Ch. 17 - Prob. 6TYUCh. 17 - Prob. 7TYUCh. 17 - Prob. 8TYUCh. 17 - The nucleotide shown below is called cordycepin...Ch. 17 - Prob. 10TYPSS
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- After 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_forwardFor 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 may produce more than one functional protein from an mRNA transcript?a. chromatin condensation b. transcriptional regulation c. epigeneticsd. alternative mRNA processingarrow_forward
- The 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_forwardDifferential RNA splicing may result in: a. A shift in the ratio of mRNA produced from two neighboring genes b. Inversion of exons in the mature mRNA c. Production of the same protein from two different genes d. Production of two different proteins with different properties from a single genearrow_forwardWhat factors are utilized by the cell in order to recognize the stop codon and disassemble the translation machinery? A. elongation factors B. release factors C. transcription factors D. initiation factors E. mRNA factorsarrow_forward
- The three stages of transcription are a. initiation, ribosome binding, and termination. b. elongation, ribosome binding, and termination. c. initiation, elongation, and termination. d. initiation, regulation, and termination.arrow_forwardAccording 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 is true for both prokaryotic and eukaryotic gene expression? A. After transcription, a 3' poly-A tail and a 5' cap are added to MRNA. B. Translation of MRNA can begin before transcription is complete. C. RNA polymerase binds to the promoter region to begin transcription. D. MRNA is synthesized in the 3' → 5' direction.arrow_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_forwardThe 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.arrow_forwardWhich of the following is true about the genetic code? A. A codon is three to six bases long. B. Each amino acid is specified by only one codon. C. The codon signaling the end of transcription also codes for an amino acid. D. There are multple codons signaling the start of transcription. E. All organisms use essentially the same genetic code.arrow_forward
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