Question

If the sequence of one strand of DNA is written as follows
5' - ATGCATGCATGCATGCATGCATGCATGC - 3'
Write down the sequence of complementary strand in 5' $\to$ 3' direction.

Answer 1

The DNA strands are complementary to each other with respect to base sequence. Hence, if the sequence of one strand of DNA is

5′- ATGCATGCATGCATGCATGCATGCATGC – 3’ Then, the sequence of complementary strand in

3′- TACGTACGTACGTACGTACGTACGTACG – 5’ direction will be

Therefore, the sequence of nucleotides on DNA polypeptide in direction is

5′- GCATGCATGCATGCATGCATGCATGCAT- 3’