NEET UG 2019 — Biotechnology - Principles and Processes

An enzyme catalysing the removal of nucleotides from ends of DNA is

Match the following enzymes with their functions  Select the correct option from the following

A selectable marker is used to

DNA's precipitation out of a mixture of biomolecules can be achieved by treatment with:

Following statements describe the characteristics of restriction endonucleases. Identify the incorrect statement.

The two antibiotic resistant genes on vector pBR322 are for

Given below are four statements pertaining to separation of DNA fragments using gel electrophoresis. Identify the incorrect statements. 1. DNA is negatively charged molecule and so it is loaded on gel towards the anode terminal. 2. DNA fragments travel along the surface of the gel whose concentration does not affect movement of DNA. 3. Smaller the size of DNA fragment larger is the distance it travels through it. 4. Pure DNA can be visualised directly by exposing UV-radiation. Select the correct option from the following