Question

If the sequence of nitrogen bases of the coding strand in a transcription unit is 5'–ATGAATG–3', the sequence of bases in its RNA transcript would be:

• A. 5'–AUGAAUG–3'
• B. 5'–UACUUAC–3'
• C. 5'–CAUUCAU–3'
• D. 5'–GUAAUGA–3'

Hint:

The RNA transcript is complementary to the template strand and identical to the coding strand, except uracil replaces thymine.

Answer 1

The Correct Option is A

During transcription, the mRNA sequence is directly dictated by the coding strand's sequence, substituting uracil (U) for thymine (T).
Coding strand: 5'–ATGAATG–3' mRNA transcript: 5'–AUGAAUG–3'