If the sequence of one strand of a DNA molecule is 5' ATGGCAT 3',the sequence of the complementary strand is:
A) 5' ATGGCAT 3'
B) 3' ATGGCAT 5'
C) 5' TACCGTA 3'
D) 3' TACCGTA 5'
E) 3' AUGGCAU 5'

Question

Quizplus · Accepted Answer

To find the complementary strand of DNA, we need to pair the nitrogenous bases in accordance with the base-pairing rules: A with T and C with G. 
So the complementary strand to 5' ATGGCAT 3' would be 3' TACCGTA 5'.

If the Sequence of One Strand of a DNA Molecule