Examine the sequence of bases below. t t a g c a t g g c identify the complementary strand of dna for the sequence of bases.
1) ttagcatggc
2) aatcgtaccg
3) atagcutccg
4) ccgatgcaat

The correct answer is 2) AATCGTACCG

Explanation:

In DNA there are four different bases i.e., adenine(A), guanine(G), cytosine(C) and thymine(T). Base pairing rules says that A will pair with T, T with A, G with C and C with G.

So according to this rule the complementary strand of the sequence TTAGCATGGC will be AATCGTACCG.

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