Fig.: Results of a dihybrid cross where the two parents differed in two pairs of contrasting traits: seed colour and seed shape Mendel wanted to observe the effect of one pair of heterozygous on other pair. So, he selected traits for dihybrid cross for his experiment as follows: (i) Colour of cotyledons→ Yellow (Y) and Green (y) (ii) Seed shape Round (R) and Wrinkled (r) ▸► Yellow and round characters are dominant and green and wrinkled are recessive characters. ▸► All the plants of the F₁ generation were yellow and round seeds (YyRr). ▸► The factors of both characters will have independently segregated to each other during gamete formation. Thus total four types of gametes (YR), (yR), (Yr), (yr) form in F, generation. ▸► On selfing of F, the resultant F, generation show four types of plants, i.e., Yellow Round, Yellow wrinkled, Green Round, Green wrinkled ▸► The punnett square given in the diagram can be effectively used to understand the independent segregation of the two pairs of genes during meiosis Join For More https://whatsapp.com/channel/0029Va9492L3QxRv5MtNFF0Y/151