NEET Zoology Biotechnology Principles and Processes Questions Solved

NEET - 2011

Given below is a sample of portion of DNA strand giving the base sequence on the opposite strands. What is so, special shown in it?

5'__ GAATTC_ 3'

3' __ CTTAAG__5'

(a) Deletion mutation

(b) Start codon at the 5' end

(c) Palindromic sequence of base pairs

(d) Replication completed

Palindromic DNA is a base sequence of DNA, which reads the same forward or backward. It has similar sequence in both the strands. Different types of palindromic sequences are recognised by restriction endonucleases.

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