Question

which of the following is true : In bacteria a. mRNA requuires no post-processing b.translation may proceed alongside transcription c.transcription and translation take place in the same compartment d.

Answer 1

1.false
2.true
3.false

Answer 2

Answer:

Since there is no cytosol–nucleus separation in bacteria because of the absence of the nuclear membrane, transcription and translation occur in the same compartment in these organisms.

Explanation:

• The majority of prokaryotic species, which include bacteria and archaea, are single-celled and, by definition, lack organelles with membrane-bound nuclei.
• Contrary to eukaryotic chromosomes, which are structured around histone proteins, bacterial chromosomes are covalently closed circles.
• The nuclei of prokaryotes are not membrane-enclosed.
• As a result, transcription, translation, and mRNA degradation can all take place at the same time.
• The simultaneous occurrence of numerous transcription and translation activities on the same DNA template can quickly increase the intracellular level of a bacterial protein.
• Prokaryotic transcription frequently involves many genes and results in polycistronic mRNAs that designate multiple proteins.

Therefore, both (b) and (c) are correct as transcription and translation occur simultaneously in no defined compartments in the bacteria.

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