Question

Explain with example law of independent assortment

Answer 1

Mendel's law of independent assortment, states that allele pairs separate during the formation of gametes. This means that traits are transmitted to offspring independently of one another.

Mendel discovered this principle after performing dihybrid crosses between plants that had two traits, such as seed color and pod color, that differed from one another. After these plants were allowed to self-pollinate, he noticed that the same ratio of 9:3:3:1 appeared among the offspring. Mendel concluded that traits were transmitted to offspring independently.

The image above shows a true-breeding plant with the dominant traits of green pod color (GG) and yellow seed color (YY) being cross-pollinated with a true-breeding plant with yellow pod color (gg) and green seed color (yy). The resulting offspring are all heterozygous for green pod color and yellow seed color (GgYy). If the offspring are allowed to self pollinate, a 9:3:3:1 ratio will be seen in the next generation. About nine plants will have green pods and yellow seeds, three will have green pods and green seeds, three will have yellow pods and yellow seeds, and one will have a yellow pod and green seeds.

This distribution of traits of typical of dihybrid crosses.

Answer 2

Explanation:

1. This principle states that the unit factor of each character is assorted or distributed into the gametes independent of the unit factors of any other character randomly rearranged in the offspring . example : Mendel's dihybrid cross the offsprings of F1 generation after self breeding produces 4 types of offsprings