Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Why Did T. H. Morgan Select Drosophila Melanogaster to Study Sex Linked Genes for His Lab Experiments ? - Biology

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Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?

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Solution

T. H. Morgan selected Drosophila melanogaster to study sex-linked genes in his lab experiment due to the following reasons:

(i) Drosophila melanogaster has short life cycle, high reproductive rate and has sex chromosomes similar to that of humans, that is, females have XX chromosomes while males have XY chromosomes (however, their sex determination mechanism is different from humans).

(ii) Sex-linked traits such as red eye colour and white eye colour are found only in Drosophila ​melanogaster, where white eye colour in males is a sex-linked recessive trait.

Concept: Sex Determination
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