KEY FACTS
 
  • Asexual reproduction is a form of reproduction in which a single parent organism produces offspring by simple division or by splitting off a part of itself.
  • Clones are genetically identical organisms. The offspring of plants and other organisms that reproduce asexually are clones.
  • Some flowering plants, such as potato plants, reproduce asexually and produce natural clones. This is called vegetative propagation.
  • Plants that do not naturally undergo vegetative reproduction can be propagated artificially by taking cuttings and making grafts.
  • Mammals do not reproduce asexually. They can be cloned artificially by splitting apart the cells of developing embryos. Recently techniques have been developed which make it possible to clone mammals from cells in older tissues.
  • All asexual reproduction whether artificial or natural produces genetically identical organisms by mitosis
  • Sexual reproduction involves the fusion of the nuclei of two gametes. Ova and sperms are the female and male gametes in mammals.
  • In sexual reproduction DNA from one generation is passed to the next by gametes.