Question

Which base nucleotide pairs with cytosine? *

cytosine
thymine
adinine
guanine

Answer 1

Guanine

Step-by-step explanation:

If you follow Chargoff's rule it will tell you which nucleotide pairs with each.

A=T

C=G

Answer 2

​Base Pair
Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.