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For any gene, high rates of transcription don’t necessarily lead to high rates …
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Wize University Biology Textbook > Gene Expression & Regulation
Introduction to Regulation of Gene Expression
7 Activities
For any gene, high rates of transcription don’t necessarily lead to high rates of translation. Why not?
a. There are high rates of protein turnover in the cytosol
b. There can be an increase in rate of mRNA decay
c. There can be an increase in transcript abundance
d. There can be inhibition of translation
via
repressor proteins
I don't know
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More Introduction to Regulation of Gene Expression Questions:
For any gene, high rates of transcription don’t necessarily lead to high rates of translation. Why not?
Which of the following accurately describes why a single SNP could affect the expression of more than one protein in eukaryotes?
Which of the following is true regarding prokaryotic operons?
A heat shock protein increases in abundance after exposure to 40°C compared to 24°C. You can visually see the increase in band intensity on a Western blot. You treat your cells with MG132 to block the activity of the proteasome as well as treating the cells with antinomycin to block transcription. Looking at your Western blot, the protein abundance of the heat shock protein decreases over time at the same temperature. What is the most likely reason for this observed decrease?
You have isolated a novel miRNA (miR-007) that affects the development of ears in rabbits.
Loss if MiR-007 leads to a mutant phenotype in which the positioning of the ears is dorsal (wild-type have frontal positioning), and the ears were significantly smaller than the regular size. With further investigations you find that transcription factor (P007) is increased in the mutant type, while the levels of mRNA are the same compared to the wild-type. The levels of proteins have changed.
What type of regulatory protein is P007?
Use the following diagram to answer the true or false questions below.
The two genes are in an operon.
A single operon containing 5 genes has how many promoter regions?
Practice: Gene Mechanisms
You are doing an experiment to determine the mechanism of gene
expression of a bacterial operon responsible for the utilization of glycerol. You know Abc1 is the regulator. You have two strains of the bacteria: one has the normal Abc1 regulator (+abc1), and the other does not (-abc1). You obtain the following results when growing the two strains with and without glycerol:
Describe the mechanism of regulation.