Asked by Ashley Perkins on Jul 03, 2024

Beadle and Tatum irradiated Neurospora and initially grew the mutant strains on complete medium. How were they able to determine the type of mutation for each strain?

A) By growing the mold on a complete medium with extra vitamins and nutrients
B) By growing the mold on minimal media supplemented with different combinations of amino acids and vitamins
C) By growing the mold in its diploid form to see which traits were masked
D) By comparing Neurospora to other species of mold
E) By observing the marked differences in morphology between the different strains

Minimal Media

A type of growth medium containing only the minimal necessities for the growth of wild-type microorganisms (such as bacteria).

Complete Medium

A culture medium that contains all the nutrients needed for the growth and proliferation of a wide range of microorganisms.

Mutant Strains

Variants of organisms, typically microorganisms, that have undergone mutations distinguishing them from the parent strain.

  • Identify the genetic basis of metabolic pathways and the impact of mutations on these pathways.
  • Illustrate the experimental approaches used to study gene function and mutation effects.