$A$ : 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.
Examine the figure given below and select the right option giving all the four parts $a, b, c$ and $d$. Correctly identify
$a\quad\;b\quad\;c\quad\;d$
Which is not a part of pistle?
Female gametophyte of a typical dicot at the time of fertilization is
With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.