Phenotype: The physical appearance of an individual that is the result of that individual's genotype and the interaction of the genotype with the environment during development. Hence, individuals with the same genotype may have different phenotypes in different environments. Compare genotype.

 

Related Words

Phenotype: The observed properties or outward appearance of a trait. The physical expression of the alleles posessed by an organism.

Contiguous Genes: Genes physically close on a chromosome that when acting together express a phenotype.

Phenotypic Plasticity: The capacity of an individual to produce different phenotypes under different conditions. Non-genetic potential variability within the range of a single individual.

Dominant: Refers to an allele of a gene that is always expressed in heterozygotes.

Imprinting: A term in ethology referring to a process similar to rapid learning or behavioral patterning that occurs at critical points in very early stages of animal development. The extent to which im . . . View Full Definition

Pleiotropy: The phenomenon of variable phenotypes for a number of distinct and seemingly unrelated phenotypic effects.

Marker: (also 'ball marker') usually a small, flat object (like a dime) used to mark the ball's position (usually, but not exclusively, on the green) while other players putt and/or the ball is cleaned

Heterogeneity: The quality or state of being heterogeneous, different in kind, unlike, incongruous.

Genotype: The genetic (alleleic) makeup of an organism with regard to an observed trait.

Discontinuous Variation: Occurs when the phenotypes of traits controlled by a single gene can be sorted into two distinct phenotypic classes.