Question

Fruit of Elephant Apple (Dillenia indica) is:-
A. Balausta.
B. Pepo.
C. Amphisarca
D. Berry.

Answer 1

Hint: Reproductive isolation is characterized by when two fertile members of the same species are not involved in the mating process which is necessary for the reproduction. Reproductive isolation is also called a pre zygotic isolation process that means no zygote is formed.

Complete answer:
Elephant apple is amphisarca fruit which is one of the five special types of berries that occur in nature. It is a special type multilocular and many seeded superior berries, in endocarp or placenta form an edible portion pulp, middle part or mesocarp is fibrous and outer part of epicarp (pericarp) is woody in nature.
A. Balausta:- it is a special type of berries which is known as false fruit or pseudocarp berry, in which two rows of fused carpels form syncarpous pistils. The whole fruit is covered by a hard rind made up of exocarp and some part of mesocarp, but mesocarp also forms the infloding that appears as plate-like. The endocarp is papery and covers the individual seeds, which possess red juicy testa, example :- pomegranate.
B. Pepo:- it is also another type of special berry which is called a false berry in which exocarp does not separate from mesocarp and seed does not separate from the placenta which form septa. Example:- gourd, pumpkin and melon.
D. Berry :- In berries the fleshy pericarp is differentiated into three parts that are named as epicarp, mesocarp, and endocarp. The endocarp is pulpy in nature.

So, the correct option is C.

Note: Fruit are the ripened ovary while ripened ovule is called seed. Fruit and seed in different plant are edible. Fruit is divided into three categories like simple fruit in which fruit develops from a single simple or compound ovary, aggregate fruit in which it develops from the free ovaries of single flower and composite or multiple fruit which develops from different flowers of inflorescence.