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) In broad winged dragonflies, eye pigment molecule production is controlled by

ID: 98939 • Letter: #

Question

) In broad winged dragonflies, eye pigment molecule production is controlled by two independently assorting genes, each with two alleles. When the dominant allele A is present at one locus and B_ at the other locus this leads to full red eye coloration; if the A allele is paired with bb genotype then this leads to golden eye phenotype. The double recessive aa at the first locus produces a pale yellow coloration regardless of alleles at the second locus.

SO:

aa__ = yellow                       A_B_ = red                                A_bb = golden      

True or False, The B gene is most likely the epistatic gene and the A gene the hypostatic gene.

The answer to this question is false but I am so confused why? Any help would be so appreciated.

Explanation / Answer

True

The B gene is epistatic gene because a epsistatic gene modifies or mask the function other gene function and here gene B modifies the gene producing red color and in other case gene b in combination of gene A produces golden color modifying the gene A which is hypostatic gene whose function is masked by epistatic gene B.Hypostatic gene function id modified or masked by the presence of other gene like in case of function of gene A whose function is masked by gene B.