Question

Study the following figures and identify the enzymes involved in steps I and II.

• A. EcoRI and DNA Ligase
• B. Hind II and DNA Ligase
• C. EcoRI and HindII
• D. Restriction endonuclease and exonuclease

Answer 1

Answer: (A)

EcoRI and DNA Ligase

At step I , there is a restriction endonuclease enzyme which works at the palindromic sequence AATTGC and at step 2, there is a DNA ligase which joins the separated fragments.

So, the correct option is 'Option A' .