Question

About how much of the DNA in a eukaryotic cell is expressed at any one time

• A. 1 per cent
• B. 20 per cent
• C. 50 per cent
• D. 80 per cent

Answer 1

Answer: (A)

1 per cent

In eukaryotes, most of the DNA (98.5% in humans) does not code for protein or RNA. Only a small percentage of DNA, 1-2% is expressed at any time.

So, the correct option is '1 percent'.