Explain how sexual reproduction gives rise to more viable variations than asexual reproduction. How does this affect the evolution of those organisms that reproduce sexually?

Explanation

(a) The asexual reproduction gives rise to small variations because in this process the DNA of only one parent is copied. Due to this the offsprings produced look almost the same. For example, sugarcane reproduces by the process of asexual reproduction so if we observe a field of sugarcan, we will find very little variations in varions sugarcane plants. All the sugarcane plants look alike. On the other hand, sexual reproduction gives rise to large variations because in this process DNA from the gemetes of two parents (male and female) is combined togethre. For example, it is due to the large variations produced by sexual reproduction that no two human beings look alike (except identical twins).
(b) The large genetic variations produced during sexual reproduction lead to the continuous evolution of those organisms which reproduce sexually. In fact , sexual reproduction plays an important role in the origin of new species having different characteristics. All this is not possible in the case of asexual reproduction.