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.

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 -

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