millovelear millovelear

07-01-2016
Biology

contestada

The center of the DNA molecule, the rungs of the ladder, are composed of
A. phosphates only.
B. nitrogenous bases only.
C. phosphates and sugars.
D. nitrogenous bases and sugars.

Respuesta :

mlevans0926 mlevans0926

12-10-2018

I think the answer is B. Hope this helps!! :)

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