KEY TERMS

chi-square test

chloroplast DNA (cpDNA)

cytoplasmic segregation

dihybrid

dihybrid cross

hybrid vigor

independent assortment

law of independent assortment (Mendel’s second law)

maternal inheritance

meiotic recombination

mitochondrial DNA (mtDNA)

polygene (quantitative trait locus)

product rule

quantitative trait locus (QTL)

recombinant

recombination

sum rule

uniparental inheritance