suppose a double-stranded d n a molecule was shown to have 15% adenine bases. what would be the expected percentage of guanine bases in that molecule?

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31-10-2022
Biology

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suppose a double-stranded d n a molecule was shown to have 15% adenine bases. what would be the expected percentage of guanine bases in that molecule?

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rafikiedu08 rafikiedu08 · Answer 1 · 2022-11-03T10:54:14-04:00

if there is 15% Adenine in a sample of DNA, there will be equal amount of thymine ie. 15%.

So, you are left with 70% out of 100%

This 70% consist of both Guanine and Cytosine.

Now in DNA Guanine and cytosine are found in equal amounts as Guanine only binds with cytosine.

Therefore, out of remaining 70%

35% is Guanine and 35% is Cytosine

And here you have your answer.

35% guanine is present in a DNA sample having 15% adenine content.

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