Question

Give genotypes and phenotypes of a cross between a pure tall plant and a heterozygous tall plant. Explain it with reference to Mendel's law of inheritance.

Give genotypes and phenotypes of a cross between a pure tall plant and a heterozygous tall plant.

Answer 1

Let T = tall and t = dwarf. Cross: TT × Tt. Gametes are T and T, t. Offspring: ½ TT and ½ Tt; all are tall. The cross illustrates dominance because T expresses in both genotypes, and segregation because the Tt parent forms T and t gametes.