Gene Expression Might Be Altered at the Level of Post-Transcriptional

question 44

Multiple Choice

Gene expression might be altered at the level of post-transcriptional processing in eukaryotes rather than prokaryotes because of which of the following?

• A) Eukaryotic mRNAs get 5' caps and 3' tails.
• B) Prokaryotic genes are expressed as mRNA, which is more stable in the cell.
• C) Eukaryotic exons may be spliced in alternative patterns.
• D) Prokaryotes use ribosomes of different structure and size.
• E) Eukaryotic coded polypeptides often require cleaving of signal sequences before localization.

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Definitions:

Amino Acid

Organic compounds that combine to form proteins, serving as the basic building blocks of life.

Glycogenolysis

The metabolic process of breaking down glycogen into glucose to be used as a source of energy by the body.

Beta Oxidation

A metabolic process in which fatty acid molecules are broken down in the mitochondria to generate acetyl-CoA, which enters the citric acid cycle, and NADH and FADH2, which are used in the electron transport chain.

Glucose

A straightforward sugar molecule that is critical for energy provision in living creatures and is incorporated into numerous carb compounds.