In asexual reproduction, only one parent is needed, resulting in off spring that is genetically identical to the parent clones. Asexual reproduction is by mitosis.
Sexual reproduction encompasses the fusion of two distinct gametes to form a zygote. Gametes are produced by a type of cell division called meiosis.
In sexual reproduction, two individuals produce off springs that have genetic characteristics from both parents. Sexual reproduction introduces new gene combinations in a population.