Question

The number of phenotypic and genotypic individuals produced during a typical Mendelian monohybrid cross will be ______ and ______ respectively.

Options

• 3 and 3 

• 3 and 2

• 2 and 2

• 2 and 3

Answer 1

The number of phenotypic and genotypic individuals produced during a typical Mendelian monohybrid cross will be 2 and 3 respectively.

Explanation:

In Mendelian cross where TT × tt the F₁ generation shows all Tt heterozygous tall. But selfing of F₁ shows the offsprings produced in F₂ are TT: Tt: tt in ratio 1 : 2 : 1 three different of genotypes and phenotypically Tall : Dwarf ratio is 3 : 1 i.e. two phenotypes seen.