Question

A DNA strand has the sequence ATCGGC. Which is the complementary strand of DNA?

Answer 1

the complementary strand of dna uses a = t; g = c MEANING if you have a in the original strand, you have t in the complementary strand
A = T
T = A
C = G
G = C
G = C
C = G
hope this helps :D

Answer 2

@MelissaHolmes is right :)