Question

if a segment of one side of a dna molecule has 500 adenine bases, how many thymine bases does the other side have?
0
125
250
500

Explanation:

Step1: Recall base - pairing rule

In DNA, adenine (A) pairs with thymine (T) through hydrogen bonds.

Step2: Determine thymine number

If one side has 500 adenine bases, the other side will have an equal number of thymine bases due to base - pairing.

Answer:

500