Which of the following correctly depicts the recongnition site for EcoRI ?

Options

A. `{:(G-A-Aoverset(darr)-T-T-C),(C-T-Tunderset(uarr)-A-A-G):}`
B. `{:(G-T-Coverset(darr)-G-A-C),(C-A-Gunderset(uarr)-C-T-G):}`
C. `{:(Goverset(darr)-T-C-G-A-C),(C-A-G-C-Tunderset(uarr)-G):}`
D. `{:(Goverset(darr)-A-A-T-T-C),(C-T-T-A-Aunderset(uarr)-G):}`

Answer

D

Explanation

The recongnition sequence for enzyme `EcoRl` is a palindromic sequence `GA AT TC`. The enzyme curs between `G` and `A` bases, in their backbone on both the strands, resulting in formation of sticky ends.