Which of the following statements about sporopollenin is false?
Which of the following statements about sporopollenin is false?
- A
Exine is made up of sporopollenin
- B
Sporopollenin is one of the resistant organic materials
- C
Exine has apertures called germ pores where sporopollenin is present
- D
Sporopollenin can withstand high temperatures and strong acids
Similar Questions
Approximate diameter of pollen grain is
Approximate diameter of pollen grain is
Tapetal cells are characterized by
Tapetal cells are characterized by
Members of which plant family, pollen grains maintain viability for months ?
Members of which plant family, pollen grains maintain viability for months ?
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]
In $40\;\%$ angiosperms, the pollen grains are shed at
In $40\;\%$ angiosperms, the pollen grains are shed at