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Over [174]
3 years ago
5

Approximately 21% of the human genome is comprised of nucleotides containing C. Given this information, calculate the percentage

of the human genome that is comprised of nucleotides containing G, T, and A.
(a) _____% of the human genome is comprised of G.
(b) _____% of the human genome is comprised of T.
(c) _____% of the human genome is comprised of A.
Enter your answer as three numbers separated by commas (example: 12, 26, 32).
Biology
1 answer:
azamat3 years ago
8 0

Answer:

(a) 21% of the human genome is comprised of G.

(b) 29% of the human genome is comprised of T.

(c) 29% of the human genome is comprised of A.

Explanation:

According to Chargaff's rule, a DNA molecule has the same amount of pyrimidines (T and C) as purines (A and G), and G pairs with C and A pairs with T.

If 21% of the genome contains C, then 21% also contains G.

Therefore 21% + 21% = 42% of the genome is comprised of G+C.

The other 58% is comprised of A+T, and because they pair with each other, 29% will correspond to A and 29% will correspond to T,

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