chapter 3 terms Flashcards
(9 cards)
independent assortment
unlinked or distantly linked segregating gene pairs assort independently at meiosis
dihybrid
an individual heterozygous at two genes (A/a.B/b)
dihybrid cross
a cross between two individuals indentically heterozygous at two gene pairs (A/a.B/b x A/a.B/b)
chi-square test
a statistical test used to determine the probability of obtaining observed proportions by chance, under a specific hypothesis
null hypothesis
a hypothesis that proposes no difference between two or more data sets
recombination
the process that generates a haploid product of meiosis whose genotype is different from either of the two haploid genotypes that consitituted the meiotic diploid
recombinant gamete
any gamete with a genotype that differs from the genotypes of the two haploid parents that fused to form the diploid meiocyte
parental gamete
any gamete with a genotype identical to one of the haploid parents that fused to form the diploid meiocyte
maternal inheritance
a type of uniparnetal inheritance in which all the progeny have the genotype and phenotype of the parent acting as the female