Answer:
Independent assortment.
Explanation:
Mendel is known as the father of genetics. He has explained the law of purity of gametes, law of segregation, law of independent assortment and the concept of dominance.
The law of independent assortment explains that in the pair of the contrasting traits, the segregation of one pair of traits is independent on the other pair of trait. This law had been generated by the dihybrid cross. The ratio of the dihybrid cross that follows the independent assortment is 9:3:3:1.
Thus, the correct answer is option (B).
