What base pairs are found in DNA and how are they paired? What is the different base that RNA has, and what does it pair with?

Answer 1

In DNA, the base pairs are adenine (A), thymine (T), cytosine (C), and guanine (G). The pairing occurs as follows:

• Adenine (A) pairs with thymine (T) through two hydrogen bonds.
• Cytosine (C) pairs with guanine (G) through three hydrogen bonds.

In RNA, the base uracil (U) replaces thymine. The pairing in RNA occurs as follows:

• Adenine (A) pairs with uracil (U).
• Cytosine (C) continues to pair with guanine (G).

Thus, while DNA has the bases A, T, C, and G, RNA consists of A, U, C, and G.