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. Alleles are different forms of genes for a particular trait.

Detailed explanation-2: -Refers to a trait that is expressed only when genotype is homozygous; a trait that tends to be masked by other inherited traits, yet persists in a population among heterozygous genotypes.

Detailed explanation-3: -Recessive alleles only show their effect if the individual has two copies of the allele (also known as being homozygous?). For example, the allele for blue eyes is recessive, therefore to have blue eyes you need to have two copies of the ‘blue eye’ allele.

Detailed explanation-4: -The masked allele is called recessive and the allele that expresses itself is called dominant. In presence of a dominant allele, the recessive character cannot be expressed i.e., masked. When a recessive allele is present in double dose, only the recessive character is expressed.

Detailed explanation-5: -A person can get a dominant allele from one parent and a recessive allele from the other parent. The dominant allele masks( hides) the expression of the recessive allele. It is written with UPPER CASE LETTERS.