PATHOLOGY

Detailed explanation-1: -An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. 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-2: -Purebred-Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid-Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT.

Detailed explanation-3: -The notation Tt means the heterozygous condition in genetics. In this condition a homologous pair contains different alleles of a gene. One homologous chromosome possesses the recessive allele and the other chromosome possesses the dominant allele present for a gene.