The ability of a cell to grow into a complete plant is called:
Cellular totipotency
Cellular totipotency is the ability of a single cell to divide and produce all the differentiated cells in an organism.
Somaclonal variation is the variation seen in plants that have been produced by plant tissue culture.
Protoplast fusion is a type of genetic modification in plants by which two distinct species of plants are fused together to form a new hybrid plant with the characteristics of both.
Tissue culture is a process that involves exposing plant tissue to a specific regimen of nutrients, hormones and light under sterile, in vitro conditions to produce many new plants, each of which is a clone of the original mother plant, over a very short period of time.