Codominance practice question
Name: _______________________________________
1. In some species of fishes, blue scales and yellow scales are codominant. The
heterozygous form is a blue and yellow fish.
Use B – Blue Scales, Y – yellow scales, BY – blue and yellow scales
Use a Punnett square to show the outcome of genotype and phenotype
a. if two heterozygous fishes are crossed
Genotype:
Phenotype:
b. if a blue and yellow fish mates with a yellow fish.
Genotype:
Phenotype: