Question

Unlike DNA, RNA A. has deoxyribose as the sugar within its nucleotide components. B. contains two strands wrapped in a helix. C. contains nitrogenous bases. D. pairs uracil with adenosine instead of thymine.

Answer 1

D. Pairs Uracil with Adenosine instead of Thymine.

Answer 2

The right answer is D

Both nucleic acids are composed of nucleotides but some differ.  

The DNA strands are composed of four nucleotides: Cytosine (C), Guanine (G), Adenine (A) and Thymine (T).  

The RNA is also composed of four nucleotides: Cytosine (C), Guanine (G), Adenine (A) and Uracil (U) (instead of thymine).