Mendel formulated some laws which are known as

The expression of only one parental trait in $F_1$ and the expression of both parental traits in $F_2$ can be explained by $ . . . . . . $.

What will be the percentage of $ab$ gametes produced by an $AaBb$ parent (in $\%$)?

Some individuals with blood group $A$ may inherit the genes for blonde hair, while other individuals with blood group $A$ may inherit the gene for brown hair. This can be best explained by the principle of

Which statement is correct for genes located on different pairs of homologous chromosomes?

Which one of the following cannot be explained on the basis of Mendel's law of dominance?