Question

Which of the following is an incorrect statement?

• A. Restriction enzymes are obtained from bacteria.
• B. Restriction enzymes are called molecular scissors.
• C. EcoRI was the first restriction enzyme to be isolated.
• D. In 1978, Arber, Smith and Nathan were awarded the Nobel prize for the discovery of restriction endonuclease.

Answer 1

Answer: (C)

HindII was the first restriction enzyme isolated from the bacteria Haemophilus influenzae.
Arber, Smith and Nathan were awarded. They received the 1978 Nobel Prize for Physiology or Medicine for the discovery of this restriction endonuclease.