OBJECTIVE FORESTRY

Detailed explanation-1: -Alleles produce phenotypes (or physical versions of a trait) that are either dominant or recessive. 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-2: -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.

Detailed explanation-3: -Recessive epistatis is the non-allelic gene interaction where the presence of one recessive gene masks the expression of another recessive gene, dihybrid ratio becomes 9 : 3 : 4.