In $40\;\%$ angiosperms, the pollen grains are shed at
In $40\;\%$ angiosperms, the pollen grains are shed at
- A
Four-celled stage
- B
Three-celled stage
- C
Two-celled stage
- D
Five-celled stage
Similar Questions
How many microspore mother cells will give rise to $256$ microspores after reduction division
How many microspore mother cells will give rise to $256$ microspores after reduction division
Assertion : If pollen mother cells has $42$ chromosomes, the pollen has only $21$ chromosomes.
Reason : Pollens are formed after meiosis in pollen mother cell.
Assertion : If pollen mother cells has $42$ chromosomes, the pollen has only $21$ chromosomes.
Reason : Pollens are formed after meiosis in pollen mother cell.
- [AIIMS 1997]
Pollens outer layer is called ...$A$... This is made up of ...$B$.... This is absent on the ...$C$.... Fill in the blanks $A, B$ and $C$
Pollens outer layer is called ...$A$... This is made up of ...$B$.... This is absent on the ...$C$.... Fill in the blanks $A, B$ and $C$
Which of the following has proved helpful in preserving pollen as fossils?
Which of the following has proved helpful in preserving pollen as fossils?
- [NEET 2018]
The odd one is
The odd one is
- [AIPMT 1991]