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9. Chargaff's rule states that the amounts of guanine and cytosine are roughly the same, and the amounts of adenine and thymine are roughly the same

A. in eukaryotes only. The rule doesn't apply to prokaryotes

B. except in species that use uracil in place of thymine in their DNA

C. but the relative amounts of G+C and A+T vary by species.

D. and the relative amounts of G+C and A+T don't vary by species.

Respuesta :

Answer:

C. but the relative amounts of G+C and A+T vary by species.

According to Chargaff's rule guanine and cytosine are roughly same and the amount of adenine and thymine are also roughly same but the relative amounts of G+C and A+T vary by species.

Chargaff Rule:-

The rule that in DNA there is always equality in quantity between the bases Adenine and Thymine and between bases Guanine and Cytosine. The second rule states that the amount of cytosine, guanine, adenine and thymine vary from species to species.

Therefore, option (c) is the correct answer.

To learn more about Chargaff's rule, refer here:-

https://brainly.com/question/19156457

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