A phenotype may be (compared
to the original conditioned by
its genotype) nongenetic means.

Examples: some may cease
to be due to diseases but
genes that determine their
remain intact; a person go to a
hairdresser change the color of
/her hair; plastic surgery can
performed to alter facial of an
individual; coloured lenses may
be worn; plant can grow beyond
genetically conditioned size by
of phytohormones.

Revealing cases environmental
influence on phenotypes observed in
monozygotic twins have grown in
different . Generally these twins
present distinct phenotypical
features due the environmental and
cultural of the places where
lived and to their
individual experiences in life.

( programmed phenotypical
changes, like -pathological changes
of the skin caused by sunlight
exposure, , or the variation of
colour of some flowers to
the pH of soil cannot be considered
from the genotype.
Actually changes are planned by
genotype as natural adaptations
environmental changes.)