Q83. Experimental verification of the chromosomal theory of inheritance was done by

4. Morgan

Solution:
Thomas Hunt Morgan experimentally verifies the chromosomal theory of inheritance. Morgan worked with tiny fruit flies, Drosophila melanogaster.
Morgan carried out several dihybrid crosses in Drosophila to study genes that were sex-linked. The crosses were similar to the dihybrid crosses carried out by Mendel in peas.

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