If one strand of a DNA molecule has the sequence of bases 5'ATTGCA3', the other complementary strand would have the sequence
A)5'TAACGT3'.
B)3'TAACGT5'.
C)5'UAACGU3'.
D)3'UAACGU5'.
E)5'UGCAAU3'.

Question

Quizplus · Accepted Answer

The complementary strand of DNA will have the same sequence in the opposite direction, but with the complementary base pairs. Adenine (A) pairs with thymine (T) and vice versa, and guanine (G) pairs with cytosine (C) and vice versa. Therefore, the complementary strand to 5'ATTGCA3' would have the sequence 3'TAACGT5'.

If One Strand of a DNA Molecule Has the Sequence