Question

If 30 percent of an organism’s DNA is thymine, then ______.

विकल्प

• 40 percent adenine

• 30 percent is cytosine

• 30 percent is guanine

• 20 percent is guanine

Answer 1

If 30 percent of an organism’s DNA is thymine, then 20 percent is guanine.

Explanation:-

Because thymine and adenine are bonded together, their numbers are equal. The sum of cytosine and guanine is also the same. The cytosine and guanine percentages are 100 - 60 = 40%. So, percentage of guanine is `40/2`= 20%.