Question

if part of the dna gene being transcribed is tgcaat, what will the mrna code be for that part?
tgcaat
ucgttu
ugcaau
acguua

Explanation:

Step1: Recall base - pairing rules

In transcription, DNA's thymine (T) pairs with mRNA's adenine (A), cytosine (C) pairs with guanine (G), and adenine (A) pairs with uracil (U) (since mRNA has U instead of T).

Step2: Transcribe each base

For the DNA sequence TGCAAT:
T pairs with A, G with C, C with G, A with U, A with U, T with A.
The mRNA sequence is ACGUUA.

Answer:

D. ACGUUA