$A$ : Filiform apparatus guides the pollen tube into the synergids.
$R$ : It is special cellular thickening at micropylar tip to secrete chemotropic stimulus.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Identify the labelled part $X, Y$ and $Z$ from the given figure :
$X-Y-Z$
Delete the odd one.
The formation of embryo sac is called
With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.