Which of these is NOT a form of post-transcriptional gene regulation? a. Efficiency of ribosomes recognizing...
Which of these is NOT a form of post-transcriptional gene regulation?
a. Efficiency of ribosomes recognizing translational signals
b. Polypeptide stability
c. mRNA stability
d. Release of the mRNA at termination
e. None of these
Homework Answers
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Which of these is NOT a form of post-transcriptional gene
regulation?
a. Efficiency of ribosomes recognizing...
Explain the difference between translational, post-translational, transcriptional, and post-transcriptional gene regulation. Give brief examples of each.
Explain the difference between translational, post-translational, transcriptional, and post-transcriptional gene regulation. Give brief examples of each.
Which of the mechanisms involving siRNA- and miRNA-based gene regulation is INCORRECT? Select one: a. Cleavage...
Which of the mechanisms involving siRNA- and miRNA-based gene regulation is INCORRECT? Select one: a. Cleavage of mRNA b. Inhibition of translation c. Post-translational modification d. Degradation of mRNA e. Transcriptional silencing
A gene-regulation strategy that is unique to eukaryotic cells is __________. See Section 19.1 ( page...
A gene-regulation strategy that is unique to eukaryotic cells is
__________. See Section 19.1 ( page 380) .
A. transcriptional regulation
B. mRNA processing
C. post-translational regulation
D. Translational regulation
Which is the factor(s) involved in the regulation of gene activity? Select one: a. Transcriptional repressor/activator...
Which is the factor(s) involved in the regulation of gene activity? Select one: a. Transcriptional repressor/activator proteins, which bind to the operator/enhancer sequence regions. b. SAM binding to a riboswitch mRNA. c. Alterations in mRNA conformations by SAM during the transcription. d. All of these. e. None of these.
In eukaryotes, post-transcriptional control of gene regulation may involve Question 19 options: a. alternative mRNA splicing....
In eukaryotes, post-transcriptional control of gene regulation may involve Question 19 options: a. alternative mRNA splicing. b. alternative mRNA splicing, control of nuclear export of mRNAs to the cytoplasm, and differential mRNA degradation. c. control of nuclear export of mRNAs to the cytoplasm. d. differential mRNA degradation.
This short RNA (miRNA) is found in eukaryotic cells. miRNAs are post-transcriptional regulators that bind to...
This short RNA (miRNA) is found in eukaryotic cells. miRNAs are post-transcriptional regulators that bind to complementary sequences on target mRNAs, resulting in enhancement of mRNA degradation by nucleases and/or _________. For the study of gene functions, artificial introduction of miRNA (siRNA) is performed to cells or animals. This experimental technique is called gene silencing and or _________, compared to the gene-deleting transgenic techniques. Select one: a. transcriptional repression ;;;; Knock-Down b. translational repression ;;;; Knock-Down c. transcriptional repression ;;;;...
Which of the following mechanisms to regulate gene expression are observed in eukaryotes, but are not...
Which of the following mechanisms to regulate gene expression are observed in eukaryotes, but are not generally observed in prokaryotes? Choose all that apply. Genes are grouped into operons, which allows transcriptional regulation to turn them all on together. RNA silencing selectively targets mRNA and destroys it to prevent further translation. Proteins can be activated or deactivated as a form of post-translational regulation. Epigenetic regulation can open or condense sectiosn of a chromosome, regulating which genes are transcribed. Regulatory proteins...
Which does not affect gene expression at the post-transcriptional level? Choose one: O A. DNA methylation...
Which does not affect gene expression at the post-transcriptional level? Choose one: O A. DNA methylation O B. small interfering RNAs O C. microRNAs O D. nucleotide sequences in the untranslated regions of an mRNA
In its active form it turns of gene expression. a.) Transcriptional repressor b.) Transcriptional activator c.)...
In its active form it turns of gene expression. a.) Transcriptional repressor b.) Transcriptional activator c.) miRNA d.) tRNA e.) terminator
Regulation of Gene Expression in Eukaryotes In eukaryotes, the Central Dogma of Genetics can be expanded...
Regulation of Gene Expression in Eukaryotes In eukaryotes, the Central Dogma of Genetics can be expanded to include post-transcriptional processing and post-translational processing, thus the Dogma becomes: Replication - Transcription Post-transcriptional Processing -Translation - Post-translational Processing - Functional Protein - Expressed Trait. This is the flow of information from the genetic material to the actual physical, chemical or behavioral trait in an organism. Of course, some traits are controlled by multiple genes and some also have an environmental component. At...
A gene-regulation strategy that is unique to eukaryotic cells is
__________. See Section 19.1 ( page 380) .
A. transcriptional regulation
B. mRNA processing
C. post-translational regulation
D. Translational regulation
Which does not affect gene expression at the post-transcriptional level? Choose one: O A. DNA methylation O B. small interfering RNAs O C. microRNAs O D. nucleotide sequences in the untranslated regions of an mRNA
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