Give differences: Microsporangium and Megasporangium
Microsporangium | Megasporangium |
$ (1)$ Microsporangium is a sac like structure located in anther. | $ (1)$ Megasporangium is egg like multi layered structure. |
$ (2)$ Microsporangium is a cavity like structure located on anther. | $ (2)$ Megasporangium is a structure located in ovary. |
$ (3)$ The innermost nutritive layer of microsporangium gives nourishment to pollen grain. | $ (3)$ Only one seed is produced from mega sporangium and seed is produced from it after fertilisation. |
If the diploid number of an angiospermic plant is $24$, the number of chromosomes in the pollen grain, endosperm and integument will be
Differentiate between:
$(a)$ Integument and testa;
$(b)$ Perisperm and pericarp.
Delete odd one
Definations / Explanation :
$1.$ Perisperma
$2.$ chalaza
Definations / Explanation :
$1.$ Nutritive layer
$2.$ Funicle