BIO NMDCAT Ribonucleic acid (RNA)

nmdcat.online July 3, 2026

26. In prokaryotes, translation of an mRNA molecule can begin before transcription is complete due to the

A. Absence of a nuclear membrane

✓

B. Simpler structure of prokaryotic tRNA

C. Absence of introns in prokaryotic DNA

D. High speed of prokaryotic RNA polymerase

📝 Explanation

Without a nuclear envelope separating DNA from ribosomes, prokaryotes can simultaneously transcribe and translate a genetic message.

📖 Additional Information

Absence of a nuclear membrane
Simpler structure of prokaryotic tRNA
Absence of introns in prokaryotic DNA
High speed of prokaryotic RNA polymerase

Without a nuclear envelope separating DNA from ribosomes, prokaryotes can simultaneously transcribe and translate a genetic message.

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