 | Term | Definition |
| |
carrier |
an individual hererozygous for a specific trait |
| |
fetus |
a developing mammal from nie weeks to birth |
| |
pedigree |
graphic representation of genetic inheritance used by geneticists to map genetic traits |
| |
autosome |
pairs of matching homologous chromosomes in somatic cells |
| |
codominant allele |
patter where phenotypes of both homozygote parents are produced in heterozygous offspring so that both alleles are equally expressed |
| |
incomplete dominance |
inheritance pattern where the penotype of a heterozygote is intermediate between those of the two homozygotes; neither allele of the pair is dominant by combine and display a new trait |
| |
multiple allele |
presence of more than two alleles for a genetic trait |
| |
polygenic inheritance |
inheritance pattern of a trait controlled by two or more genes; genes may be on the same or different chromosomes |
| |
sex chromosome |
in humans, the 23rd pair of chromosomes; determine the sex of an individual and carry sex-linked characteristics |
| |
sex-linked trait |
traits controlled by genes located on sex chromosomes |
| |
karyotype |
chart of metaphase chromosome oairs arranged according to length and location of the centromere; used to pinpoint unusal chromosome numbers in cells |
