American biologist and geneticist who was one of the first scientists to find that sex is determined by a particular configuration of chromosomes
a. august welsmann
b. gregor johann mendel
c. nettle maria stevens
d. Thomas Hunt Morgan

American zoologist and geneticist, famous for his experimental research with the fruit fly (Drosophila) by which he established the chromosomes theoryof heredity.
a. August Welsmann
b. Gregor Johann Mended
c. Nettle Maria Stevens
d. Thomas Hunt Morgan

he is the german biologist and one of the founders of science of genetics
a. August Welsmann
b. Gregor Johann Mended
c. Nettle Maria Stevens
d. Thomas Hunt Morgan

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