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11 Cards in this Set
- Front
- Back
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Mendelian crosses
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Experiments where individuals of known ancestry are mated
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Progeny
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Offspring produced by Mendelian crosses
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Parental generation
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Consists of individuals from purebred stock
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Purebred stock
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Only expresses one version of the phenotype; every individual homozygous for one allele
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Parental
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Phenotypes of the parental generation and the genotypes of gametes produced from the parental generation
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First filial generation (F1)
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Offspring produced by the parental generation
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Backcrosses
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Matings between F1's and parentals
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Test cross
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Cross between an organism whose genotype is in doubt and an organism that is homozygous recessive for all genes of interest (testor)
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Monohybrid cross
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The purebred parents differ in one phenotype, the F1 has a single phenotype, the F2 shows either a 1:2:1 or 3:1 ratio of phenotypes in both sexes
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Sex-limited genes
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Mostly autosomal genes that control secondary sexual characteristics; never expressed in one sex
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Sex-influenced phenotypes
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Genes are expressed in both sexes, but the phenotype is modified in a sex-specific manner
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