Allele - a variation of a gene, First Filial - the offspring of parents  F1, Second Filial - the offspring of first generation F2, Genotype - the genetic expression of an organism Hh, Phenotype - the physical appearance of an organism, Heterozyous - A gene pair in which each allele is different, Homozygous - A gene pair which each allele is the same, Karyotype - picture of chromosome sets, nondisjunction - the failing division of chromosome resulting abnormal chromosome numbers, parent generation - the original cross of mating pairs, incomplete dominance - a blending of two traits, codominance - the expression of two traits which both show, Mendel - the father of genetics, Multiple Alleles - the combination of alleles to exhibit a trait. example: Blood typing , Test cross - method to determine genotype of a dominant organism, Sex-linked - genes are connected to sex chromosomes, Epistasis - gene expression affects another gene, Pleiotropy - condition when one gene has multiple results or effects, Polygenetic - traits affected by more than one gene, linkage map - A visual to show crossover frequencies, Pedigree - a family tree showing genetic relationships, Carrier - term used for heterozygous female in sexlinked genotypes, aneuploidy - abnormal number of chromosome term,

Heredity - APBio

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