Which statement correctly describes the transcription of DNA?
Correct answer: B. It produces mRNA
- A. It produces another DNA molecule
- B. It produces mRNA
- C. It is a semi conservation process
- D. It occurs at surface of ribosomes
Explanation
Transcription uses one DNA strand as a template to synthesize a complementary RNA molecule, commonly mRNA for a protein-coding gene. It occurs in the nucleus of eukaryotic cells, whereas ribosomes use mRNA during translation in the cytoplasm. Students may choose semi-conservative replication because DNA is involved, but semi-conservative copying produces DNA, not mRNA.
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About Ribonucleic Acid (RNA)
Ribonucleic acid is generally a single-stranded nucleic acid containing ribose and uracil instead of thymine. Coverage includes mRNA, tRNA and rRNA, complementary base pairing, transcription and translation, and the differences between RNA and DNA in structure, location and biological function.
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