Question

The role of DNA ligase in the construction of a recombinant DNA
molecule is:
a. Formation of phosphodiester bond between two DNA fragments
b. Formation of hydrogen bonds between sticky ends of DNA
fragments
c. Ligation of all purime and pyrimidine bases
d. None of the above


NCERT Class XII
Biology - Main Course Book

Chapter 11. Biotechnology: Princeples and Processes

Answer 1

The role of DNA ligase in the construction of a recombinant DNA molecule is 
a. Formation of phosphodiester bond between two DNA fragments.

Answer 2

The answer is: (a).............................