BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 9, Problem 15SA
Put the following processes in order of their occurrence during expression of a eukaryotic gene:
| a.
|
c. transcription |
| b. translation | d.
|
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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 transcript
Name one step of gene expression and describe one way that step differs between prokaryotes and eukaryotes.
If a human gene is found to contain five introns, the mature mRNA encoded by that gene would have how many exons?
a) four exons
b) five exons
c) six exons
d) there could be multiple mRNA that contain between one and six exons
Chapter 9 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 9 - A chromosome contains many different gene regions...Ch. 9 - A binding site for RNA polymerase is called a...Ch. 9 - An RNA molecule is typically _________ ; a DNA...Ch. 9 - RNAs form by ______ ; proteins form by ________ ....Ch. 9 - Prob. 5SACh. 9 - Prob. 6SACh. 9 - Energy that drives transcription is provided...Ch. 9 - Most codons specify an _________ . a. protein c....Ch. 9 - Anticodons pair with _______ . a. mRNA codons c....Ch. 9 - What is the maximum number of amino acids that can...
Ch. 9 - _______ are removed from new mRNAs. a. Introns c....Ch. 9 - Where does transcription take place in a...Ch. 9 - Where does translation take place in a eukaryotic...Ch. 9 - Energy that drives translation is provided mainly...Ch. 9 - Put the following processes in order of their...Ch. 9 - Prob. 16SACh. 9 - Researchers are designing and testing antisense...Ch. 9 - An anticodon has the sequence GCG. What amino acid...Ch. 9 - Each position of a codon can be occupied by one of...Ch. 9 - Prob. 4CTCh. 9 - Translate the sequence of bases in the previous...Ch. 9 - Prob. 6CT
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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
- What happens when one base pair of DNA is lost from the coding region of a gene because of mutation? First explain how this would affect the mRNA sequence, and second, explain how this would alter the amino acid of the protein that is encoded.arrow_forwardWhich of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.arrow_forwardWhich of the following is the best description of a transcription factor? A. A protein that brings the correct nucleotides to RNA polymerase B. A protein that binds to specific DNA sequences C. A DNA sequence that binds to RNA polymerase D. A modification that is made to mRNA to help it be exported from the nucleus. .arrow_forward
- If eukaryotes have monocistronic genes, why is the number of known proteins more than the number of known genes? A. Post-translational modification B. Alternative splicing C. Base substitution D. Post-transcriptional modificationarrow_forwardExplain (in one or two lines) the function of the followings:(a) Promoter(b) tRNA(c) Exonsarrow_forwardPortions of eukaryotic mRNA sequence that are removed during RNA processing are . a. exons b. caps c. poly-A tails d. intronsarrow_forward
- Which of the following will increase the rate of transcription? a. Activation of a transcriptional repressor b. Inhibition of a transcriptional activator c. Histone methylation leading to chromatin compaction d. Removal of RNA polymerasearrow_forwardIn Eukaryotes, DNA is a long molecule inside a tiny nucleus. a. How can this long chain fit in such space? b. How does it affect gene expression?arrow_forwardSickle cell anemia is a disease caused by a mutation at the genotypic level. A person with two copies of the gene has the disease, but a person with one copy of the gene does not have the disease. The diagram shows how this mutation affects an organism. Use the image to answer the question. Which conclusion can you draw based on the diagram? A. The mutation changed the amino acid sequence during the translation step. B. A mutation caused the information in DNA to change during the transcription step. C. A change in the DNA sequence can be carried over to the translation and transcription steps. D. The change that affected the translation and transcription steps does not affect the organism.arrow_forward
- The biological process shown in Figure 1 occurs in a eukaryotic cell’s nucleus. a) What is the DNA base sequence of Codon 1? b) What is the anticodon sequence for Codon 1? c) Name the enzyme involved in the production of Y.arrow_forwardA scientist observing a cell during gene expression would be able to easily distinguish it as a prokaryotic cell by which of the following observations? Group of answer choices as soon as the DNA introns are removed from the template after the 5' caps are converted to mRNA after a transcription initiation complex has been formed during transcription once the pre-mRNA has been converted to mRNA 2. Which of the following is least related to the other items? Group of answer choices inducer repressor operator enhancers regulatorarrow_forwardWhich of the following is NOT TRUE about Eukaryotic Transcription: A. Occurs in the cytoplasm B. Pol II has 12 subunits C. Pol III transcribes tRNA genes D. It’s controlled by Cis-acting sequences E. Leads to specialization of cell functionarrow_forward
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