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'→3' direction
Solution:
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 
direction will be
3'- TACGTACGTACGTACGTACGTACGTACG − 5’
Therefore, the sequence of nucleotides on DNA polypeptide in direction is
5'- GCATGCATGCATGCATGCATGCATGCAT− 3’
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