LIFE SCIENCE

Detailed explanation-1: -A recessive trait is a genetic factor that is blocked by the presence of a dominant factor.

Detailed explanation-2: -Traits can be determined by genes, environmental factors or by a combination of both. Traits can be qualitative (such as eye color) or quantitative (such as height or blood pressure). A given trait is part of an individual’s overall phenotype.

Detailed explanation-3: -A dominant allele determines the expression of a specific trait even in the presence of other alleles. One dominant allele is enough for a dominant trait to be observed in the organism. For example, since brown eyes are dominant over blue eyes, an individual needs only one allele for brown eyes for it to be manifested.