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Genetics and Genomics

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Differences in Gene Expression between Eukaryotes and Prokaryotes

GENES-NJB3QG

Consider the trp operon found in bacterial species which regulates the expression of the genes which synthesize tryptophan. The hairpin structures of the mRNA itself can play an important role in the regulation of the expression of these genes.

Why would a similar system be unlikely to function in a eukaryotic species?​

A

The 5' cap in eukaryotic mRNA would prevent a similar system in eukaryotes.

B

The poly A tail in eukaryotic mRNA would prevent a similar system in eukaryotes.

C

Polycistronic genes are extremely rare in eukaryotes.

D

In eukaryotes, transcription and translation are decoupled.

E

Eukaryotes are less likely to synthesize their own amino acids.