Multiple choice

Which of the following organisms was used by Beadle and Tatum to propose one gene-one enzyme hypothesis?

  1. E. coli

  2. Nostoc

  3. Drosophila

  4. Neurospora

  5. -

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the early 1940s, American geneticists Edward Tatum and George Beadle evaluated Garrod's hypothesis using Neurospora. The one gene-one enzyme hypothesis is the idea that each gene encodes a single enzyme.