An indvidual heterozygous for a specific trait.
A developing mammal from nine weeks to birth.
Graphic representation of genetic inheritance used by gentics to map genetic traits.
Pairs of matching homologous chromosomes in somatic cells.
Pattern where the phenotypes of both homozygote parents are produced in heterozygous offspring so that both alleles are equally expressed.
Inheritance pattern where the phenotype of a heterozygote is intermediate between those of the two homozygotes.
Presence of more that two alleles for a genetic trait.
Inheritence pattern of a trait controlled by two or more genes.
In humans, the 23rd pair of chromosomes.
Traits controlled by genes located on sex chromosomes.
Chart of metaphase chromosome pairs arranged according to length and location of the centromere.
temp, nutrition, light, chemicals influence gene expression.