Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 13, Problem 10TY
_____ blank refers to the process that allows a single type of pre-mRNA to give rise to multiple types of mRNAs due to different patterns of intron and exon removal.
- a. Spliceosomes
- b. Variable expression
- c. Alternative splicing
- d. Polycistronic in RNA
- e. Induced silencing
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Differential 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 gene
Define (whether post-transcriptional, post-translational, transcription) and describe the regulation of the Ferretin mRNA in the diagram below.
55__________________ assemble to form a spliceosome, the splicing machine that excises introns.
A.snRNAb.tRNAc.Micro RNAD.rRNAs
56Eukaryotic initiator tRNA is charged with a formylated methionine.
Yesorno
57Eukaryotic mRNA can be purified by separating molecules a mixture of total RNA by:
A.Oligo (dG) cellulose chromatographyb.Oligo (dT) cellulose chromatographyc.Oligo (dC) cellulose chromatographyD.Oligo (dA) cellulose chromatography
Chapter 13 Solutions
Biology
Ch. 13.1 - Prob. 1CCCh. 13.2 - Which genes are under the control of the lac...Ch. 13.2 - With regard to regulatory proteins and small...Ch. 13.2 - What were the key observations made by Jacob,...Ch. 13.2 - CoreSKILL What was the eventual hypothesis...Ch. 13.2 - Prob. 3EQCh. 13.2 - Core Skill: Connections Look back at Fig 9.12....Ch. 13.2 - What are the advantages of having both an...Ch. 13.2 - Prob. 4CCCh. 13.4 - Prob. 1CC
Ch. 13.4 - Prob. 2CCCh. 13.4 - Prob. 1BCCh. 13.6 - Prob. 1CCCh. 13.6 - Prob. 2CCCh. 13 - Prob. 1TYCh. 13 - Prob. 2TYCh. 13 - Transcription factors that bind to DNA and...Ch. 13 - Prob. 4TYCh. 13 - For the lac operon, what would be the expected...Ch. 13 - Prob. 6TYCh. 13 - The trp operon is considered _____ blank operon...Ch. 13 - Prob. 8TYCh. 13 - Prob. 9TYCh. 13 - _____ blank refers to the process that allows a...Ch. 13 - Prob. 1CQCh. 13 - Transcriptional regulation often involves a...Ch. 13 - Prob. 3CQCh. 13 - Discuss the advantages and disadvantages of...Ch. 13 - Discuss the advantages and disadvantages of...
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- 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.arrow_forwardEukaryotic mRNAs a. require processing to produce mature mRNAs b. do not require processing to produce mature mRNAs c. mature mRNAs do not exist d. mature mRNAs are always bigger than the primary 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_forward
- a. Show (on the image) 3 steps that must be taken to produce a mature mRNA molecule from this pre- mRNAb. Place an arrow at the 5’ end of intron 2. (splice site). c. Why is a promoter not shown in this image?arrow_forwardA 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.arrow_forwardWhich of the following is not a possible size (in bp) of the mature mRNA? a. 205bp b. 180bp c. 150bp d. 100bparrow_forward
- A nonsense mutation Select one: a. results in a larger protein being produced from the mutated gene b. will lead to premature termination of translation c. is the same as a silent mutation d. will lead to the premature termination of transcriptionarrow_forwardIdentify the eukaryotic level of gene regulation. Choose the correct answer below. a. Pre- transcriptional control b. transcriptional control c. translational control d. post-translational control 1. in the fruit fly, genes from rRNA can be replicated more or less often compared to the rest of the chromatin depending on the needs of the cell. 2. in the human beta-globin, two introns are spliced out in order to produce the mature mRNA. 3. DNA methylation can change the degree of condensation of the chromatin. 4. The mouse REST gene is under the control of a promoter region that contains alternative promoters.arrow_forwardThe figure shows the position of two of these mutations a and b. The nucleotides are altered in these 2 different swo-1 mutant alleles. Use the genetic table to describe any AA changes.Name the type of mutation and describe its effect on swo-1 mRNA and protein for each of the mutations. 3. The swo-1 a mutation (insertion between C and G). 4. The swo-1 b mutation (C-to-T mutation for indicated C). 5. The swo-1 a mutation leads to worms with more body wall muscle, whereas worms with the swo-1 b mutation are not able to move. Based on these phenotypes and the findings from questions 3 and 4, describe the role thewild-type version of this protein plays in muscle function.arrow_forward
- Complete the phrases with the correct word or words. The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives. a. methionine b. ribosome c. codon d. AUG e. UAC The mRNA moves out of the nucleus and attaches to a The first codon of an mRNA molecule is always As soon as the first codon is in place, a tRNA molecule arrives with the anti-codon The first tRNA to arrive always carries the amino acid called, The ribosome scoots along the mRNA to read the nextarrow_forwardYou may wish to consult the genetic code above to answer the following question. A mutation has changed a portion of a protein coding gene that encodes a messenger RNA sequence. The original messenger RNA sequence is 5-AUGCCCAGAGCU-3' Which mutation is a nonsynonymous (missense) mutation that changes a single amino acid in the encoded protein? O 5-AUGCCCAGGGCC-3' O 5'-AUGCCCUGAGCU-3' O 5'-AUGCCCACAGCU-3 5'-AUGCCCCAGAGCU-3arrow_forwardWhat potential polypeptides can be produced from the following mRNA sequence? There are more than one answer.. 5’ ...GGAGCUCGUUGUAUU... 3’ a. ser-ser-leu-tyr b. leu-cys-cys-ser-arg c. gly-ala-ser-trp-ile d. gly-ala-arg-cys-ile e. glu-leu-val-val f. You can't translate without a start codon. I know (d) is one of the answer but I'm stuck on how to find the rest. Please help.arrow_forward
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