If A equals 25%, what are the approximate percentages of T, G, and C?

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Multiple Choice

If A equals 25%, what are the approximate percentages of T, G, and C?

Explanation:
In double-stranded DNA, base pairing requires A pairs with T and G pairs with C, so the amounts of each paired pair are equal. If A is 25%, then T must also be 25%. Together A and T account for 50%, leaving 50% for G and C. Since G pairs with C, their amounts are equal as well, so each is about 25%. Therefore T ≈ 25%, G ≈ 25%, and C ≈ 25%.

In double-stranded DNA, base pairing requires A pairs with T and G pairs with C, so the amounts of each paired pair are equal. If A is 25%, then T must also be 25%. Together A and T account for 50%, leaving 50% for G and C. Since G pairs with C, their amounts are equal as well, so each is about 25%. Therefore T ≈ 25%, G ≈ 25%, and C ≈ 25%.

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