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Morgan in 1891
Morgan in 1891
In a typical Drosophila genetics experiment, male and female flies with known phenotypes are put in a jar to mate; females must be virgins. Eggs are l
In a typical Drosophila genetics experiment, male and female flies with known phenotypes are put in a jar to mate; females must be virgins. Eggs are laid in porridge which the larvae feed on; when the life cycle is complete, the progeny are scored for the inheritance of the trait of interest.
Morgan's illustration of crossing over, from his 1916 A Critique of the Theory of Evolution
Morgan's illustration of crossing over, from his 1916 A Critique of the Theory of Evolution
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Human chromosomes during metaphase
Human chromosomes during metaphase
The 23 human chromosome territories during prometaphase in fibroblast cells
The 23 human chromosome territories during prometaphase in fibroblast cells
Image: Theodor Boveri
Image: Theodor Boveri