Question

Restriction endonucleases were discovered by

A. Arber and Smith

B. Jackson, Symons, and Berg

C. Boyer and Cohen

D. Temin and Baltimore

Answer 1

The correct answer is A. Arber and Smith. Restriction endonucleases, also known as restriction enzymes, were discovered by Werner Arber and Daniel Nathans in the late 1960s. Hamilton Smith also made significant contributions to the discovery and understanding of restriction enzymes. Together, Arber, Nathans, and Smith received the Nobel Prize in Physiology or Medicine in 1978 for their work on restriction enzymes.