Question

A white rooster is crossed with a black hen. the rooster is homozygous, and so is the hen. if the black and white colors are incompletely dominant, what color(s) will the chicks be? explain below and show with a punnett square.

Answer 1

Incomplete dominance is where an allele is not complete dominant over the other allele, therefore the resulting trait is the mix of the two alternate traits for example in this case of a white rooster and a black hen. Therefore; if B is the allele of black color and W is the allele for white color, then,
                             white rooster
                              W  X  W
  Black hen   B      BW   BW
                     X
                     B     BW    BW      
The chicks will have a genotype BW and the phenotype will be gray color (mixture of white and black)