NEET BIOLOGY

Detailed explanation-1: -A dominant allele produces a dominant phenotype in individuals who have one copy of the allele and suppresses the expression of another allele (recessive allele). A dominant allele can express itself in both the conditions, homozygous and heterozygous but recessive can be expressive only in homozygous condition.

Detailed explanation-2: -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. In our example, this genotype is written Bb.

Detailed explanation-3: -dominant: describes a trait that is expressed both in homozygous and heterozygous form. dominant lethal: inheritance pattern in which individuals with one or two copies of a lethal allele do not survive in utero or have a shortened life span. genotype: complete genetic makeup of an individual.