The most resistant organic material known which makes up the outermost layer of pollen wall is
The most resistant organic material known which makes up the outermost layer of pollen wall is
- A
Pectin
- B
Cellulose
- C
Sporopollenin
- D
Lignin
Similar Questions
In a flowering plant the largest number of haploid cells occur in
In a flowering plant the largest number of haploid cells occur in
One pollen mother cell may produce four germinating pollen grains, each with two male nuclei and one tube nucleus. How many meiotic divisions are necessary to bring this about
$A$ : Growth of male gametophyte is completed over the female reproductive organ.
$R$ : $2-$celled stage of partial male gametophyte is developed in-situ.
$A$ : Growth of male gametophyte is completed over the female reproductive organ.
$R$ : $2-$celled stage of partial male gametophyte is developed in-situ.
Diameter of pollen grain
Diameter of pollen grain
Identify $A$ and $B$ in diagram given below:
Identify $A$ and $B$ in diagram given below: