NEET BIOLOGY

Detailed explanation-1: -The type of allele that is often hidden or overshadowed by dominant allele is known as a recessive allele. The trait expressed by the recessive allele only manifests if the individual is homozygous for that trait.

Detailed explanation-2: -The dominance or recessivity associated with a particular allele is the result of masking, by which a dominant phenotype hides a recessive phenotype.

Detailed explanation-3: -An organism receives two genes for each trait, one from each parent. One of the genes may be stronger; the trait of the stronger gene shows up and is called the dominant gene. The trait of the weaker gene is “hidden” or does not show up and is called the recessive gene.

Detailed explanation-4: -An allele is considered dominant when it masks the expression of the recessive trait in a heterozygous genotype. When you are homozygous for a recessive allele, the phenotype expressed is the recessive trait. If you are heterozygous, one of each, the dominant trait is expressed.

Detailed explanation-5: -The recessive trait is hidden in the heterozygous individual (Dd) if the other allele is inherited in a dominant fashion, and so this person is a called a “carrier” of the recessive allele, but does not manifest the disease or trait.