Question

if a gene sequence is acgtttacaa, what will be the corresponding mrna sequence? a agcuuuagaa b tgcaaatgtt c ugcaaauguu d agcuuuacaa

Explanation:

Step1: Recall base - pairing rules

In transcription, DNA (gene) to mRNA: A pairs with U, C pairs with G, G pairs with C, T pairs with A.

Step2: Apply base - pairing to the given DNA sequence

Given DNA sequence: ACGTTTACAA
For A in DNA: U in mRNA
For C in DNA: G in mRNA
For G in DNA: C in mRNA
For T in DNA: A in mRNA

So, A (DNA)→U (mRNA), C (DNA)→G (mRNA), G (DNA)→C (mRNA), T (DNA)→A (mRNA), T (DNA)→A (mRNA), T (DNA)→A (mRNA), A (DNA)→U (mRNA), C (DNA)→G (mRNA), A (DNA)→U (mRNA), A (DNA)→U (mRNA)

The mRNA sequence is UGCAAAUGUU

Answer:

C. UGCAAAUGUU