Question

the following dna strand is being replicated: aag-tac-cct what will the new complementary strand be? tta-atc-gga aag-tac-cct agg-gta-ctt ttc-atg-gga

Explanation:

Step1: Recall base - pairing rules

In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

Step2: Analyze each triplet

For the first triplet "AAG":

• A pairs with T, A pairs with T, G pairs with C. So it becomes "TTC".

For the second triplet "TAC":

• T pairs with A, A pairs with T, C pairs with G. So it becomes "ATG".

For the third triplet "CCT":

• C pairs with G, C pairs with G, T pairs with A. So it becomes "GGA".

Answer:

TTC - ATG - GGA (corresponding to the last option)