LIFE SCIENCE

Detailed explanation-1: -The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. An organism’s phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.

Detailed explanation-2: -The phenotype is the physical appearance due to the presence of a trait. For example, tall and dwarf are the phenotypes for the trait height. The genotype is the genetic makeup of the trait present in the organism.

Detailed explanation-3: -Polygenic inheritance can be explained by additive effects of many loci: if each “capital” allele contributes one increment to the phenotype. With one locus and additive effects we have three phenotypic classes: AA, Aa and aa.