Which of the following statement is correct for the pollen tube
Which of the following statement is correct for the pollen tube
- [AIPMT 1993]
- A
It shows chemotactic movement
- B
It shows only tip growth
- C
It is composed of three non-cellular zones
- D
It shows radial cytoplasmic streaming
Similar Questions
The cell that divides to form two male nuclei in angiosperms is
The cell that divides to form two male nuclei in angiosperms is
In an young anther the four rows of cells which later produce pollen are called
In an young anther the four rows of cells which later produce pollen are called
In monocots, male gametophyte is
In monocots, male gametophyte is
- [AIPMT 1990]
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]