Question

1. how does base pairing differ in rna, compared to dna?

t pairs with u
u pairs with c
u pairs with g
a pairs with u

Explanation:

DNA uses adenine (A) pairing with thymine (T), and cytosine (C) pairing with guanine (G). RNA lacks thymine; instead, adenine (A) pairs with uracil (U), while C-G pairing remains the same as in DNA.

Answer:

D. A pairs with U