If the DNA analysis of a gene shows 20% Adenine bases,what would be the percentage of Thymine, Cytosine ,Guanine and Uracil?

Answer 1

Since adenine is 20%, then thymine is 20% as well.
The total of both is 40%.
From 100 remains 60% which is divided equally between guanine and cytosine, so each is 30%.
Uracil is not found in DNA but it will have the same percentage as thymine, i.e the RNA will have 30% uracil.

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Answer 2

Eli Ayoub

If the DNA analysis shows 20% Adenine bases, then the percentages of Thymine, Cytosine, and Guanine would each be 30%, as DNA base pairs are complementary (A pairs with T, and C pairs with G). Since Uracil is not present in DNA, its percentage would be 0%.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.