Question

In a double stranded DNA, the sequence of nucleotides in one strand is 3' ATTCGCTAT 5'. What will be the complementary sequence on the other strand?

• A. 3' TAAGCGATA 5'
• B. 5' TAAGCGATA 3'
• C. 5' ATTCGCTAT 3'
• D. 5' TAAGCGTTA 3'

Answer 1

Answer: (B)

5' TAAGCGATA 3'

Complementary is one of the unique character of DNA that makes it less reactive and suitable genetic material.

The sequence of nucleotides in one strand is 3' ATTCGCTAT 5'

The sequence of nucleotides in one strand is 5' TAAGCGATA 3'

So the correct option is '5' TAAGCGATA 3'.