Which of the following correctly identifies the proper nitrogen base pairing in DNA replication?

A:T;G:C

T:C;G:A

A:U; G:C

T:U; C: G

A:T;G:C

Explanation:

adenine goes with thymine unless it's mRNA and it will go with uracil. guanine and cytosine always go together.

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explanation:

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