McGraw-Hill Ryerson Biology 11 Chapter 6- complex patterns of inheritance definitions

Codominance

The condition in which both alleles for a trait are equally expressed in a heterzygote ; both alleles are dominant (Ex: black and white dogs having a spotted dog)

Continuous variation

The range in variation of a trait resulting from the activity of many genes

Heterozygous advantage

Survival advantage for people who inherent two alleles of the same trait

Incomplete dominance

A condition in which neither allele for a gene completely conceals the presence of the other; in results in immediate expression of a trait (Ex: black and white dogs having a grey dog)

Polygenic trait

Trait controlled by more than one gene

Linked genes

Genes that are on the same chromosome that tend to be inherited together

sex-linked trait

Trait controlled by genes on the X or Y chromosome

Bioinformatics

A field of study that deals with using computer technology to create and analyze large databases of information

Genomics

The study of genomes and the complex interactions of genes that result in phenotypes

Genetic profile

The complete genotype of an individual including various mutations