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*22. When Bridges crossed white-eyed females with red-eyed males, he obtained a few red-eyed males and white-eyed females (se


P generation White-eyed female Red-eyed male Separation of XS (90% of time) Nondisjunction of Xs (10% of time) Cametes y Fert figure 4.13
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As due to nondisjunction,the white eyed female have 3 sex choromosome The various female ( x gamates formation from white eyed w y) due to non disjunction. xxy Eggs X tor i Xy But from the Red eyFertilisation of gamate & wl X X X wu XX dies У Xwx wy Redeyed metafemale (dies white eyed female xty (Red eyed male) xtywy ХRed eyed female – 2 xx } XX w white eyed female - XWXY Red ayed male - xty white eyed male – 1 - 2 X YY, IX WY there segregation into the gamate can be vary.That will leads to formation of different proportion progeny in next generation.

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