Question

What is Mendel's law of independent assortment?

Answer 1

Dihybrid cross:

1. Cross between two parents, considering alternative traits of two different characters.
2. For example - Cross between wrinkled-green seeds (rryy) with round-yellow seeds (RRYY).
3. The phenotypic ratio in F₂ generation of dihybrid cross is - 9:3:3:1

Law of Independent Assortment:

1. It is based on a dihybrid cross.
2. The law states that ‘when two pairs of traits are combined in a hybrid, segregation of one pair of characters is independent of the other pair of characters.'
3. Each pair of contrasting characters behaves independently and bears no association with a particular character.
4. Because of such an independent assortment of characters, new combinations of characters are produced in the offspring.