Assume that two strands of DNA have been separated and that the base sequence on one strand is TTGC. What is the sequence of bases on the complimentary strand? a GTAC b AACG c GCTA d CGTT

Answer 1

The complementary base pairing rule in DNA states that adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

Given the sequence on one strand is TTGC, you can find the complementary bases as follows:

• T pairs with A
• T pairs with A
• G pairs with C
• C pairs with G

Therefore, the sequence of bases on the complementary strand is AACG.

The correct answer is b AACG.