Thomas Hunt Morgan Quotes

Enjoy the top 8 famous quotes, sayings and quotations by Thomas Hunt Morgan.

Thomas Hunt Morgan Quotes

Within the period of human history we do not know of a single instance of the transformation of one species into another one. It may be claimed that the theory of descent is lacking, therefore, in the most essential feature that it needs to place the theory on a scientific basis, this must be admitted.
— Thomas Hunt Morgan —

Except for the rare cases of plastid inheritance, the inheritance of all known cofactors can be sufficiently accounted for by the presence of genes in the chromosomes. In a word the cytoplasm may be ignored genetically.

— Thomas Hunt Morgan

The egg of every species of animal or plant carries a definite number of bodies called chromosomes. The sperm carries the same number. Consequently, when the sperm unites with the egg, the fertilized egg will contain the double number of chromosomes.

— Thomas Hunt Morgan

Two years work wasted, I have been breeding those flies for all that time and I've got nothing out of it.

— Thomas Hunt Morgan

For each chromosome contributed by the sperm there is a corresponding chromosome contributed by the egg, there are two chromosomes of each kind, which together constitute a pair.

— Thomas Hunt Morgan

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