In a wild-type neurospora , 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? (a) wild type (normal production of the dark pigment), as ed is a negative allele (b) wild type (normal production of the dark pigment), as eis haplosufficient (c) mutanmutant (no pigment production), as the mutant allele ed is dominantt (no pigment production), as no e-e dimers will form in the heterozygote (d) mutant (no pigment production), as e is haplosufficient