Give differences : Male gametophytic stage and Female gametophytic stage
Male gametophytic stage | Female gametophytic stage |
$(1)$ Male gametophytic stage is formed by mitotic division of microspores. | $(1)$ Female gametophytic stage is formed by mitotic division of megaspores |
$(2)$ Pollen tube events is seen. | $(2)$ Ovules are formed. |
$(3)$ Vegetative cell and generative cell are produced from pollen nucleus. | $(3)$ By division of megaspore nucleus 8 nucli and 7 cellular structures are forme |
Definations / Explanation :
$1.$ Geitonogamy
$2.$ Coleorrhiza
Name the parts of an angiosperm flower in which development of male and female gametophyte take place.
Choose correct options
- Autogamy is genetically xenogamy
- Pollination occurs by air in grass
- Placenta is arranged in inner wall of ovary
- It is possible to store pollen grains in liquid nitrogen - $100^oC$
List the changes observed in an angiosperm flower subsequent to pollination and fertilisation.
It is not included in post fertilisation event