Multiple choice

Restriction Enzyme was discovered by:

  1. Berg

  2. Waksman

  3. Smith and North

  4. Alexander Fleming
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Restriction enzymes (also called restriction endonucleases) were discovered by Hamilton Smith and Daniel Nathans in 1970, building on earlier work by Werner Arber. They shared the 1978 Nobel Prize in Medicine for this discovery. Alexander Fleming discovered penicycin, Berg was a pioneer in recombinant DNA technology, and Waksman discovered streptomycin.

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