2007-03-01 15:46:29 · 6 answers · asked by shara l 1 in Science & Mathematics ➔ Biology
pollen grains are present in the flowers of plants to cause pollination. this pollination are of two types-- self pollination and cross pollination.in self pollination the pollens fall on the stigma of the same flower which is female part of flower causing fertilization. where as in cross pollination the pollens are carried to different flowers to cause fertilization with the ovum of other flowers. these cross pollination are caused by eithr wind,or by the insects.
2007-03-01 15:55:39 · answer #1 · answered by nan 2 · 0⤊ 0⤋
In the process of reproduction as due to pollen grains the processes of pollination and fertilization occurs.
pollen grains are male gametes of the flowering plants.
pollen grains fertilize with the ovaries and seed is produced which contains a new embryo which further develops into a new seedling.
2007-03-01 23:54:43 · answer #2 · answered by Shreyan 4 · 0⤊ 0⤋
Pollen is the male reproductive output of plants. Just as with sperm in male animals. It carries the males DNA.
Pollen is the stuff that makes us all sneeze and wheeze, if you have a plant allergy. Yes, we breath in plant sperm.
2007-03-02 00:04:04 · answer #3 · answered by Anonymous · 0⤊ 0⤋
they carry the male sex cells, the pollen grain is a protective covering and also a vehicle in most instances
2007-03-01 23:49:55 · answer #4 · answered by Bio-student Again(aka nursegirl) 4 · 0⤊ 0⤋
faithful soul is correct
2007-03-02 04:05:18 · answer #5 · answered by Anonymous · 0⤊ 0⤋
pollination and fertilisation
2007-03-02 07:30:52 · answer #6 · answered by emikato_913 2 · 0⤊ 0⤋