Read the information below and then answer the questions that follow. In an experiment similar to those by Beadle and Tatum, Neurospora spores were mutated and grown in minimal medium test tubes. Mutants unable to grow without the amino acid "L"were isolated. Compounds A, B, and C are precursors to L.
The following data are generated by providing these compounds to the mutants.
Data:
All strains grow if given compound L.
Strains that grow given compound B also grow if given A or C.
Strains that grow given compound C do not grow if given only B or A.
Strains that grow given compound A will also grow if given C, but not if given only B.
-Each strain has a mutation in a different gene whose product is an enzyme in the production of amino acid L.

Question

Quizplus · Accepted Answer

The information provided indicates that compounds A, B, and C are all precursors to amino acid L, and the growth patterns of the mutants with these compounds suggest a specific sequence or pathway in the synthesis of L, which is consistent with the principle that each gene mutation affects an enzyme involved in a metabolic pathway, as demonstrated by Beadle and Tatum's experiments.

Read the Information Below and Then Answer the Questions That