Answer:
In many plants species , a plant have different patterns on their leaves. It is because of mutations which occurs due to change in the DNA or genetic makeup because of environmental factors such as UV light and other substances.
Step-by-step explanation:
Mutation refers to the sudden change which occurs in the genetic makeup of the cell due to the exposure to harmful radiations such as UV radiation and gamma radiation. In Plant cells, mutation also occurs due to the external environment. Sometimes it occurs naturally and sometimes due to certain radiation or smoke.