How can you prove that chromosomes carry genda ?

Dear Student,

We can prove that Chromosomes carry genes by the experiment done by Morgan.
Morgan demonstrated the physical basis of heredity. Where Mendel had reproduced pea plants, Morgan gathered evidence on Drosophila. In contrast to Mendel, who found easily recognizable qualities, they invested months looking for a fly with any distinguishing characteristic that could be studied. At last they found a single white-eyed male fly, which emerged from the red eyes fruit flies. A cross between the white-eyed male and a red-eyed female delivered just red-eyed flies toward. White-peered toward freaks returned in the accompanying age — the great example of a recessive attribute. Notwithstanding, the white-eye colour characteristic was seen solely in male flies of the second generation. They inferred that white-eyed is a sex-linked recessive characteristic. The quality for eye color must be physically situated on the X chromosome.

Regards

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Thomas Hunt Morgan and his students at Columbia University ushered in the era of modern genetics when they showed the physical basis of heredity. Where Mendel had bred pea plants, the Columbia group studied inheritance in the common fruit fly. Unlike Mendel, who found readily identifiable traits, they spent months searching for a fly with any unique trait that could be studied.

Finally they discovered a single white-eyed male fly, which stood out from its normal, red-eyed peers. A cross between the mutant male and a red-eyed female produced only red-eyed offspring. White-eyed mutants reappeared in the following generation ? the classic pattern of a recessive trait. However, the white-eyed trait was seen exclusively in males of the second generation. They concluded that white-eyed is a sex-linked recessive trait. The gene for eye color must be physically located on the X chromosome.
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dont know
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Prateek's answer is correct bro. you can copy that.
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Xka
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Thanks
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