If root of flowering plant has $24$ chromosomes then its gamete has how many chromosomes?
If root of flowering plant has $24$ chromosomes then its gamete has how many chromosomes?
- A
$24$
- B
$12$
- C
$4$
- D
$8$
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The two-celled stage of mature pollen grain consists of
The two-celled stage of mature pollen grain consists of
Endothecium layer of anther lobes is present
Endothecium layer of anther lobes is present
$A$ - Only some cells of the sporogenous tissue is capable of giving rise to microspore tetrad.
$R$- The microspores are arranged in a cluster of four cells - the microscopic tetrad.
$A$ - Only some cells of the sporogenous tissue is capable of giving rise to microspore tetrad.
$R$- The microspores are arranged in a cluster of four cells - the microscopic tetrad.
After penetrating stigmatic and styler tissues, the pollen tube usually grow down towards the egg because
After penetrating stigmatic and styler tissues, the pollen tube usually grow down towards the egg because