The percentage of the genome that encodes functional genes _______ as genome size increases.
A) steadily increases
B) increases to a point,and then levels off
C) stays more or less the same
D) increases at first,and then declines
E) steadily decreases

Question

Quizplus · Accepted Answer

As genome size increases, the percentage of the genome that encodes functional genes tends to decrease because larger genomes often contain more non-coding DNA, such as repetitive sequences and introns.

The Percentage of the Genome That Encodes Functional Genes _______