Linkage and Gene Maps 11.5.

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Presentation transcript:

Linkage and Gene Maps 11.5

Genes can be mapped to specific locations on chromosomes.

Gene linkage was explained through fruit flies. Thomas Hunt Morgan found that linked traits are on the same chromosome. Chromosomes, not genes, assort independently during meiosis. Wild type Mutant

Linked genes are not inherited together every time. Chromosomes exchange homologous genes during meiosis.

Linkage maps estimate distances between genes. The closer together two genes are, the more likely they will be inherited together. Linkage maps show the relative locations of genes.

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