Answer:
B) two strains of auxotrophic
Neurospora that grow on minimal
medium supplemented with biotin.
have mutations in the same gene
Step-by-step explanation:
The Beadle and Tatum experiment proved that
genes are responsible for making enzymes that control metabolic processes. ... From there, they determined that the mold needed the amino acid arginine, and their mutation was to a single
The concept above was proposed by George Beadle and Edward Tatum in an influential 1941 paper on genetic mutations in the mold Neurospora crassa, and subsequently was dubbed the "one gene–one enzyme hypothesis" by their collaborator Norman Horowitz .In 2004 Norman Horowitz reminisced that "these
experiments founded the science of what Beadle and Tatum called 'biochemical genetics.' In actuality they proved to be the opening gun in what became molecular genetics and all the developments that have followed from that."The development of the one gene– one enzyme hypothesis is often considered the first significant
result in what came to be called molecular biology. Although it has been extremely influential, the hypothesis was recognized soon after its proposal to be an oversimplification. Even the subsequent
reformulation of the "one gene–one polypeptide" hypothesis is now considered too simple to describe the relationship between genes and proteins.