Which of the strands of DNA could act as a primer for the DN
Which of the strands of DNA could act as a primer for the DNA sequence shown below?
5’-CCCTGGGCTCTGTAAATGTTTCTAAGTG-3’
3’-GGGACCCGAGACATTTACAAAGATTCAC-5’
A: 3 -ACTGTTAGA-5
B: 3 -CCCTGGCTCT-5
C: 3 -GTGAATCTTT5’
D: 5 -GGGACCCGA-3
E: 5 -CCCTGGGCT-3
Solution
E: 5 -CCCTGGGCT-3
The above sequence is complementary to the lower 3--->5\' strand. Hence it can pair with this strand and polymerase can extend this strand.

