Question

In a wild-type fungus, protein e (encoded by the haplosufficient gene "e") normally homodimerizes, and the e-e dimer catalyzes a biochemical reaction necessary for the production of a dark pigment. Ed represents a mutant, dominant, negative allele of gene
e. What is the predicted phenotype of a fungus cell of genotype e+/ed, and why?

Answer 1

Answer:

Hey mate here is your answer....

A) mutant (no pigment production), as E is haplosufficient

B) mutant (no pigment production), as no E-E dimers will form in the heterozygous

C) mutant (no pigment production), as the mutant allele ED is dominant (correct answer. why??

D) wild type (normal production of the dark pigment), as ED is a negative allele

E) wild type (normal production of the dark pigment), as E is haplo sufficient.

hope it's helpful for you....

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