Question

which nitrogen base pairs with cytosine in dna? guanine thymine adenine uracil

Explanation:

In DNA, the nitrogen - base pairing follows specific rules. Adenine (A) pairs with Thymine (T) through two hydrogen bonds. Cytosine (C) pairs with Guanine (G) through three hydrogen bonds. Uracil (U) is found in RNA and pairs with Adenine in RNA, not in DNA.

Answer:

Guanine