$A$ : Eight cells of octant stage in dicot embryogeny are made by $2$ vertical and one transverse divisions in
embryonal cell.
$R$ : These cells are arranged in epibasal and hypobasal tier.
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.
Mature embryo sac contains or A normal angiosperm embryo sac at the final stage of development has
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
What does the filiform apparatus do at the entrance into ovule?
Megasporangia arise from the ....
Ovules are borne on