$A$ : Initial growth of pollen tube takes place on expenditure of food present in the stigma and style.
$R$ : Pollen tube travels intracellularly and chemotactically.
$A$ : Initial growth of pollen tube takes place on expenditure of food present in the stigma and style.
$R$ : Pollen tube travels intracellularly and chemotactically.
- A
Assertion and Reason both are correct and also correct explanation.
- B
Assertion and Reason both are correct but not explanation of assertion.
- C
Assertion is correct, but Reason is incorrect.
- D
Both Assertion and Reason are incorrect.
Similar Questions
Pollen-Pistill Interaction is mediated by
Pollen-Pistill Interaction is mediated by
Growth of pollen tube towards embryo sac is
Growth of pollen tube towards embryo sac is
- [AIIMS 2000]
The generative cell of a two-celled pollen divides in the pollen tube but not in a three-celled pollen. Give reasons.
The generative cell of a two-celled pollen divides in the pollen tube but not in a three-celled pollen. Give reasons.
Identify $X$ and $Y$ from figure.
Identify $X$ and $Y$ from figure.
Give information about compatible and incompatible pollen.
Give information about compatible and incompatible pollen.