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What was Thomas Hunt Morgan's main contribution to science?
He discovered that certain traits were linked to the X chromosome.
He discovered that certain traits were linked to the Y chromosome.
He created the first white-eyed female Drosophila.
He created the first white-eyed male Drosophila.
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He discovered that certain traits were linked to the X chromosome. He discovered that certain traits were linked to the Y chromosome. He created the first white-eyed female Drosophila. He created the first white-eyed male Drosophila.

Explanation: brainliest plz

enzyme speed up the reactions

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.