Two sequences both contain the same protein-coding gene.They differ only in that one has an enhancer and the other does not.We can thus say that the sequences differ
A) only in their regulatory sequences.
B) only in their open reading frames.
C) only in their tRNA genes.
D) in both their open reading frames and their regulatory sequences.
E) in both their tRNA genes and their regulatory sequences.

Question

Quizplus · Accepted Answer

The difference between the two sequences is that one has an enhancer, which is a type of regulatory sequence that can increase the transcriptional activity of a gene. Therefore, the sequences differ only in their regulatory sequences, not in their open reading frames or tRNA genes.

Two Sequences Both Contain the Same Protein-Coding Gene