True breeding variety is produced by which of the following?

Explanation

B is the correct option because Plants or animals that undergo self-fertilization for several generations, such that their traits under consideration remain unchanged are known as true-breeding or pure-breeding plants or animals. It is one that when self-pollinated, produces offspring with the same traits. True breeding is a kind of breeding wherein the parents would produce offspring that would carry the same phenotype. This means that the parents are homozygous for every trait. Option b is wrong because Self-fertilization is the union of male and female gametes of the same individual. Cross Fertilization is the fusion of male and female gametes of different individuals of the same species. Self-fertilization reduces the genetic diversity. Cross-fertilization increases the genetic diversity.