3.29

Objective 3.29: understand that variation within a species can be genetic, environmental or a combination of both

Variation: differences in phenotypes. measured in graphs

population’s phenotypes controlled by their Genotype and/or Environment

Genotype: Some phenotypes are controlled just by a variation in the organism’s genotype, the environment has no control in the phenotype
e.g. blood group. discontinuous variation

Genotype + Environment: Sometimes variation of a population’s phenotype is controlled by their genotype and environment.
e.g. Height. If parents are tall, your genotype might make you tall and changes in environment can also make you tall. continuous variation

Environment: variations in a population can be controlled by just environment. e.g. home language. cannot be inherited.