Question

G-T mismatches commonly result from the spontaneous deamination?

Answer 1

Spontaneous deamination of cytosine can result in G-T mismatches during DNA replication.

Step-by-step explanation:

Spontaneous deamination is a process in which cytosine, one of the bases in DNA, is converted to uracil. This conversion can result in the formation of G-T mismatches during replication. Let's break it down step by step:

1. Spontaneous deamination of cytosine occurs, converting it to uracil.
2. During DNA replication, the uracil in the template strand pairs with adenine (instead of guanine as it normally does).
3. In the new complementary strand, the adenine is replaced with thymine, resulting in a G-T base pair.

Therefore, G-T mismatches commonly result from the spontaneous deamination of cytosine.