Analysis of a sample of DNA reveals that 33% of the nucleotides contain adenine. What is the percentage of nucleotides which contain thymine and cytosine, respectively?

1 Answer
Shahzada B.
Jan 28, 2016

Thymine would be 33 % and cytosine would be 17%.

Explanation:

If a sample of DNA contains 33 % adenine then it contains 33% thymine too.
Adenine= Thymine (because they are paired together, they are in equal amounts)
So, out of 100, adenine and thymine are 66% of nucleotides, which leaves 100-66=34. So, that means guanine and cytosine are 34%. And they are always in equal amounts too so, cytosine and guanine are 17% of the nucleotides.

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