Question #5cf86

1 Answer
Jan 17, 2018

55

Explanation:

I assume you mean "100 BASE pairs".

If so, then there are 45 C-G pairs, and consequently 100-45= 55 A-T basepairs in the chain.
Therefore, 55 A's (Adenine).

Note: Actually, percentages of Adenine and Thymine are higher in DNA from most sources than that for Guanine and Cytosine....