All plants have the potential to reproduce asexually. In plants this
practice is known as vegetative propagation;
pieces of the parent
plant are removed and these develop into wholly independent plants.
All living cells contain a nucleus with a complete set of genetic
information (see genetic code, Pollination and fertilization
), with the potential to become
any specialized cell type (totipotency). Only part of the total information
is brought into operation at any one time and for any position in the
plant. If parts of the plant are removed, then cells lose their orientation
in the whole plant and are able to produce organs in positions not found
in the usual organization. These are described as adventitious
for example, be roots on a stem cutting, buds on a piece of root, or roots
and buds on a piece of leaf used for vegetative propagation.