a wild-type yeast and a genetic variant both have a gene encoding a protien chan

Question

a wild-type yeast and a genetic variant both have a gene encoding a protien channel produced in the presence of chemical X. the genetic variant has a mutation in a regulatory gene for expression of the protien channel. which of the following with respect to the receptor is correct?

A. the answer cannot be determined from the information provided

B. the organisms have different genetic sequences for the receptor

C. the organisms have the same receptor genotype but different phenotypes

D. the genotypes and phenotypes of both organisms ae the same

E. the phenotypes of both organisms are the same but the genotypes differ

Explanation / Answer

A wild-type yeast and a genetic variant both have a gene encoding a protien channel produced in the presence of chemical X. So, they have same genotype. Further, the genetic variant has a mutation in a regulatory gene for expression of the protien channel. So,they will have different phenotypes. Therefore, the answer for this question is option (C) the organisms have the same receptor genotype but different phenotypes.

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