Question

A DNA strand having the sequence C-G-A-T-T-G would be complementary to the sequence ______.

Options

• C-G-A-T-T-G

• G-C-T-A-A-C

• G-C-T-A-A-G

• T-A-G-C-C-T

Answer 1

A DNA strand having the sequence C-G-A-T-T-G would be complementary to the sequence G-C-T-A-A-C.

Explanation:

In DNA base-pairing, C pairs with G and A pairs with T. Replacing each base in C-G-A-T-T-G with its complement gives G-C-T-A-A-C.