Question

just need help with part c.
can't quite figure it out, thanks.

In poultry, the allele B results in black feathers. Its recessive allele, b, produces yellow-splashed feathers. The heterozygous results in blue feathers. The dominant factors O and C are both required f any color at all in the feathers. Homozygous recessive at either locus results in white feathers. In each of the following 3 cases give the genotypes of the parental birds and their offspring, along with an explanation of the ratios. 5. a. Two completely white birds that produce a FIl, all of which are black. b. Two black birds that produce 54 black birds and 42 white birds. c. Two blue birds that produce 16 black, 47 blue, and 14 yellow-splashed birds.

Answer 1

In case of c genotype of the parents are BbCCOO and BbCCOO.

Genotype of offspring

Black feather bird = BBCCOO

Blue feather bird = BbCCOO

Yellow splashed feather bird = bbCCOO

The genotypic ratio is roughly 1:3:1 which is not matching to the ratio 1:2:1, genotypic ratio found during the self-cross of the heteroallelic condition. This data doesn't fit the genetic hypothesis. This data suggest that the experiments were not performed properly.