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Why has T.H. Morgan selected fruit flies...

Why has T.H. Morgan selected fruit flies for his genetical experiments ?

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T. H. Morgan worked with fruit flies, Drosophila melanagaster to verify chromosomal theory of inheritance. He selected Drosophila for following reasons :
(i) They can be grown in simple synthetic medium.
(ii) They complete the life cycle in 2 weeks.
(iii) Single mating produced large progeny.
(iv) Clear differentiation between male and female.
(v) It has many types of hereditary variation.
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