Using a Punnett square, work out the distribution of phenotypic features in the first filial generation after a cross between a homozygous female and a heterozygous male for a single locus.

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the $F_1$ plants were selfed the resultinggenotypes were in the ratio of

Some pure black mice were mistakenly mixed with hybrid black mice. The quickest way to discover whether one individual black mouse is pure is

In a monohybrid cross when $F‌‌_1$ is crossed with homozygous dominant parent then which type of offsprings will obtain

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