Question

differentiate between self and cross pollination

Answer 1

Self pollination _
The transfer of the pollen grain from the stamen to the pistial of the same flowers , or the flowers of same plant.
Cross pollination _
The transfer of pollen grain from the stamen to the carpel of the different plant having same characters..

Answer 2

self pollination: it is a process through which the pollen grains are transferred to the same stigma of the same flower.

cross pollination: it is a process through which the pollen grains are transferred to other flowers of the same species of the plants.