Which DNA sequence would be complementary to the following sequence TCTA? A. AGAT
B. AGAU
C. TCTA
D. ATCT

A. AGAT

Explanation:

Remember these are the nitrogenous base pairs:

Adenine (A) and Thymine (T)

Cytosine (C) and Guanine (G)

So in TCTA

The T would change to A

The C would change to G

The T would change to A

The A would change to T

And we would get AGAT

Therefore the answer is A

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explanation: