Incomplete Dominance
Inheritance pattern where the phenotype of a heterozygote is immediate between those of two homozygotes.
Codominant Allele
Pattern where phenotypes of both homozygote parents are produced heterozygous offspring so that both alleles are equally expressed.
Multiple Allele
Presence of more that two alleles for a genetic trait.
Autosome
Pairs of homologous chromosomes in a somatic cell.
Sex Chromosome
In a human the 23rd pair of chromosomes determine the sex of an individual and carry characteristics.
Sex Linked Trait
Traits controlled by genes located on sex chromosomes.
Polygenic Inheritance
Inheritance pattern of a trait controlled by two or more genes.
Pedigree
Graphic representation of genetic inheritance.
Carrier
An individual heterozygous for a special trait
Fetus
A developing mammal from nine weeks to birth.