The devices to discourage self-pollination are:

Given below are two statements.
Statement $I$: Self-incompatibility is a device that prevents outbreeding.
Statement $II$: Self-incompatibility is a genetic mechanism due to which germination of pollen on the stigma of the same flower is inhibited.
In the light of the above two statements,choose the correct answer from the options given below.

Define the following terms:
$1.$ Chasmogamous
$2.$ Cleistogamous

What do flowering plants develop many devices to prevent?

In which plants do outbreeding devices prevent autogamy but not geitonogamy?

Select the correct option for self-pollination in plants from the following.