🎓 IB Exam Prep

During transcription, which enzyme is responsible for synthesizing mRNA by reading the DNA template strand?

A DNA polymerase
B RNA polymerase
C Ligase
D Helicase

✓ Correct Answer: Option B

RNA polymerase unwinds the DNA helix and synthesizes an RNA molecule using the DNA template strand. DNA polymerase is involved in DNA replication, while helicase unwinds DNA.

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