The scientists who proposed the theory of linkage are

Continuous variations are attributed to

Provide the experimental verification of the chromosomal theory of inheritance.

Which one of the following pairs is correctly matched?

Briefly mention the contribution of $T.H.$ Morgan in genetics.

The experiment shown in the given figure has been carried out by Morgan to show the phenomenon of linkage and recombination. If in cross $I$,genes are tightly linked and in cross $II$,genes are loosely linked,then what will be the percentage of recombinants produced in cross $I$ and cross $II$ respectively?