AP BIOLOGY

Detailed explanation-1: -A cross with the homozygous recessive (yy) is a test cross. If the parent of unknown genotype is heterozygous (Yy), half of the offspring will have the recessive trait.

Detailed explanation-2: -Homozygous Recessive Definition In genetics, an organism with two recessive alleles would be referred to as homozygous recessive, while an organism with one dominant allele and one recessive allele would be heterozygous.

Detailed explanation-3: -Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.

Detailed explanation-4: -yy is the homozygous dominant genotype (2 y alleles). The phenotype of this genotype is green seed color. The types of gametes produced by each individual depends on its genotype. So, a YY genotype can only produce gametes with Y alleles.