What is the complement of this sequence of DNA: 5′-CCTATCGA-3′?
A) 5′-CCTATCGA-3′
B) 3′-CCTATCGA-5′
C) 3′-AGCTATCC-5′
D) 5′-GGATAGCT-3′
E) 5′-TCGATAGG-3′

Question

Quizplus · Accepted Answer

The complement of a DNA sequence is formed by pairing adenine (A) with thymine (T) and cytosine (C) with guanine (G). The complement of 5′-CCTATCGA-3′ is 3′-GGATAGCT-5′, which is written as 5′-TCGATAGG-3′ in the 5' to 3' direction.

What Is the Complement of This Sequence of DNA: 5′-CCTATCGA-3′