10.2 Dihybrid Crosses and Gene Linkage (AHL)

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Dihybrid crosses:

Dihybrid Cross, from the College of the Siskiyous (more animations here)

Dihybrid Crosses from ZeroBio

Dihybrid cross problem set, from Arizona

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Gene Linkage, Crossing Over and Recombination:

Alleles that don’t assort independently, from LifeWire

Crossing Over animation:

Recombination frequencies activity, from ThinkQuest

Holliday junctions and crossing over, from Wisconsin

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Key terms: genotypic, phenotypic, ratio, dihybrid, linked, unlinked, autosomal, sex, chromosomes, genes, autosomes, crossing-over, non-sister, chromatids, meiosis, prophase I, alleles, recombination, linkage group.