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Chapter 9 Section 2

ch 9 sec 2

TermDefinition
genotype an organisms genetic makeup
phenotype an organisms appearance
homozygous when both alleles of a pair are alike
heterozygous when the two alleles in a pair are different
probability the likelihood that a specific event will occur
monohybrid cross a cross in which only one characteristic is tracked
punnett square cross designed to predict the outcome of the inherited traits of the offspring
genotypic ratio the ratio of the genotypes
phenotypic ratio the ratio of the offspring's phenotypes
testcross when an individual of unknown genotype is crossed with a homozygous recessive individual
complete dominance one allele is completely dominant over another
incomplete dominance offspring will have a phenotype in between that of the parents
codominance when both alleles for a gene are expressed in a heterozygous offspring
dihybrid cross a cross in which two characteristics are tracked
Created by: zhaberstich
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