Question

Which one of the following is an EXCEPTION to the generalization made by Mendel on the basis of his experiments on garden pea plant?

Options

• Single trait → single gene → Two alleles.

• Two alleles show interaction in which one is completely dominant.

• The genotypic and phenotypic ratios are identical in monohybrid crosses.

• Factors (genes) for different traits present on different chromosomes assort independently.

Answer 1

The genotypic and phenotypic ratios are identical in monohybrid crosses.

Explanation:

Genotypic ratio of monohybrid crosses: 1 : 2 : 1.

Phenotypic ratio of monohybrid crosses: 3 : 1.