Biotechnology Principles And Processes Question 34

Question: What is the first step in the Southern Blot technique [AIIMS 2004]

Options:

A) Denaturation of DNA on the gel for hybridization with specific probe

B) Production of a group of genetically identical cells

C) Digestion of DNA by restriction enzyme

D) Isolation of DNA from a nucleated cell such as the one from the scene of crime

Show Answer

Answer:

Correct Answer: D

Solution:

The first step in southern blot technique is isolation of DNA from a nucleated cell and then these isolated DNA sequences are transferred to a nylon or nitrocellulose sheet placed over the gel.