Example of binary fission
Now the plantlets are grown in a pot of soil. Cells of callus are separated and each cell can give a new plant. This tissue grows into a mass of cells called a callus. The explant is kept in a nutrient medium under controlled condition. In this method, a piece of tissue is cut from the plant the removed tissue is called explant. This is a modern method of vegetative reproduction. e.g., reproduction in Amoeba, Paramecium, Viruses. Many single-celled organisms reproduce by binary fission, where a cell divides into two halves and each rapidly grows into an adult. Thus, in these organisms cell division is itself a mode of reproduction. In Protists and Monerans, the organism or the parent cell divides into two to give rise to new individuals. Usually followed by organisms with relatively simpler organizations.The term clone is used to describe such morphologically and genetically similar individuals.These offspring are genetically and morphologically identical to parents.As a result, the offspring that are produced are not only identical to one another but are also exact copies of their parent.In this method, a single individual (parent) is capable of producing offspring.Sexual Reproduction: When two parents (opposite sex) participate in the reproductive process and also involve the fusion of male and female gametes, it is called sexual reproduction.Asexual Reproduction: When offspring is produced by a single parent with or without the involvement of gamete formation, the reproduction is asexual.Reproduction enables the continuity of the species, generation after generation. Thus, there is a cycle of birth, growth and death.
The offspring grow, mature and in turn produce new offspring. Reproduction is defined as a biological process in which an organism gives rise to young ones (offspring) similar to itself.