If $F_2$ of a dihybrid cross contains only parental combinations,then Mendel would have discovered .....

The phenomenon of crossing over in diploid organisms is responsible for

Which of the following statements is $NOT$ true for two genes showing $50\%$ recombination frequency?

Which of the following animals was selected by $T.H. Morgan$ for studying linkage?

Mendel studied seven pairs of traits in pea plants,which allow for $21$ possible combinations. If you are told that one of these combinations does not show independent assortment in a subsequent study,what would be your reaction?

In female $Drosophila$,linked genes show recombination during meiosis. However,such recombination does not occur during sperm formation in male $Drosophila$. Why?