From a method called phagocytosis.
Explanation:
Patrick is a heterozygous dominant (he have one allele for pink body color and one allele for yellow body color
His wife Trisha is homozygous recessive (she have two alleles for yellow body color)
When they mate their is a 50% chance that the offspring will has the dominant allele from his father and a 50% chance that the offspring will has the recessive allele from his father and his phenotype will be his father allele in both cases
The answer is B. The first cross between the black-eyed mendelian and an orange-eyed mendelian resulted in all of them having black eyes. This means that black-eyed is the dominant trait in the species. That means if a phenotype is orange-eyed then it is homozygous recessive (bb). There will be no black-eyed since all of them are recessive.
