The plant part which consists of two generations one within the other,is

'Fertilisation is not an obligatory event for fruit production in certain plants'. Explain the statement.

How many of the following fruits involve floral parts other than the ovary in their formation?
Pea,Cashew,Mango,Strawberry,Orange,Apple

In castor, the proliferation of the outer integumentary cells at the micropylar region forms a structure known as the caruncle. What is the primary function of this structure?

$A$ collar-like outgrowth arising from the base of the ovule and forming a sort of third integument is known as:

Define the importance of the following structures in a monocot seed:
$(i)$ Aleurone layer
$(ii)$ Epidermal layer