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gene a hereditary factor that influences a particular trait
allele a version of a gene
genotype a listing of the alleles in a genotype
phenotype an individuals observable traits
homozygous having two of the same allele
heterozygous having two different alleles
dominant allele an allele that produces the associated phenotype in heterozygotes
recessive allele an allele that produces the associated phenotype only in homozygotes
pure line a breed or strain of animals or plants that maintains a high degree of consistency in certain characters as a result of inbreeding for generations.
hybrid offspring from crosses between homozygous parents with different genotypes
reciprocal cross a cross in which the phenotypes associated with the male and female in a prior cross are reversed
testcross experimental cross between a homozygous recessive individual and an individual with the dominant phenotype but an unknown genotype
Created by: 088103



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