NEET BIOLOGY

Detailed explanation-1: -An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.

Detailed explanation-2: -A homozygous genotype contains two identical alleles. An individual can either be homozygous dominant (ex: HH) or homozygous recessive (ex: hh). A heterozygous genotype contains two different alleles (ex: Hh).

Detailed explanation-3: -Conventions and terms used in explaining genetic problems Dominant alleles are written as a capital letter (H), and recessive alleles as a small (lower case) version (h) of the same letter. whereas one with two different forms (Hh) is called heterozygous (a heterozygote)-also called a hybrid.

Detailed explanation-4: -Homozygotes code for the same trait, for instance, blue eyes. If you have two blue eye alleles, your eyes will be blue.

Detailed explanation-5: -A full head of hair is a dominant feature, with the homozygous gene of HH.