Pedigree.
A graphic representation of genetic inheritance.
Carrier.
A heterozygous individual.
Fetus.
The developing baby.
12.2
Incomplete dominance.
The phenotype of heterozygous individuals is intermediate between those of the two homozygous.
Codominant allele.
Cause the phenotype of both homozygous to be produced in heterozygous individuals.
Multiple allele.
Presence of more that two alleles for a genetic trait.
Autosome.
Homologous autosome look alike.
Sex chromosome
Are indicated by the letters X and Y.
Sex-linked trait.
The alleles for sex-linked traits are written as superscript of the X and Y chromosome.
Polygenic inheritance.
Is the inheritance pattern of a trait that is controlled by two or more genes.