$T.H.$ Morgan worked with $Drosophila$ to prove the chromosomal theory of inheritance. Which of the following characteristics was $NOT$ present in $Drosophila$?
- ACompletion of the life cycle in two weeks.
- BProduction of large numbers of progeny in a simple synthetic medium in the laboratory.
- C$Drosophila$ were hermaphrodites.
- DNone of the above.
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