After irradiating Neurospora, Beadle and Tatum collected mutants that would
A) not grow on a minimal medium but would grow on a minimal medium with arginine.
B) grow on any minimal medium.
C) not grow on any minimal medium.
D) grow on a minimal medium but would not grow on a minimal medium with arginine.
E) None of the above

Question

Quizplus · Accepted Answer

Beadle and Tatum used irradiation to induce mutations in Neurospora and then screened for mutants that had lost the ability to synthesize certain nutrients. They found mutants that could not grow on a minimal medium but could grow on a minimal medium supplemented with arginine. This indicated that the mutations had affected the biosynthetic pathway for arginine, and led to their hypothesis of "one gene-one enzyme".

After Irradiating Neurospora, Beadle and Tatum Collected Mutants That Would