Question

Pick the correct match.

A. Helicase	(i) To join nucleotides on DNA
B. Gyrase	(ii) To open DNA
C. Primase	(iii) Unwind DNA
D. DNA polymerase III	(iv) For RNA printing

• A. A-ii, B-iii, C-iv, D-i
• B. A-i, B-ii, C-iii, D-iv
• C. A-ii, B-iv, C-iii, D-i
• D. A-iv, B-iii, C-i, D-ii

Answer 1

The correct option is A A-ii, B-iii, C-iv, D-i

DNA replication is a complex process and requires close cooperation of a number of enzymes. Helicase are the enzyme, which acts on the helical structure of DNA and open the DNA double helix. DNA gyrase will help in unwinding DNA by removing the strain introduced when DNA double helix is opened by helicase enzyme. Primase is an important enzyme of primosome complex. It synthesizes RNA primer which can be extended by DNA polymerase. The DNA polymerase III is the major replicating enzyme in baceteria. It catalyzes polymerisation of DNA nucleotides.