Question

species
07. Assertion : A pollen tube is produced by pollen grain that reaches the ovule.
Reason: Pollen grains germinate when they fall on the stigma of flowers of different
(1)
(6) If both the assertion and the reason are true and the reason is a correct explanation of the
(i) If both the assertion and reason are true but the reason is not a correct explanation of the
(iii) If the assertion is true but the reason is false
(iv)If the assertion is false but reason is true
assertion
assertion
8 Assertion The longer thread​

Answer 1

Answer:

both assertion and reason are correct and reason is correct explanation

Explanation:

Germination of the pollen grain takes place on the stigma (or also called the pistol). It's amazing! The ovule (female) has these cells (synergids) that release calcium attracting the pollen grain ( male) and the pollen grain knows then to grow down towards this calcium source where also the ovule is waiting for it!!!!

THe micropyle is the open end of the integument which surrounds the megasporangium (or zygote).

THe corolla is the outside part of the plant and the anther is a "male" part of the plant!

Hope this helps!