Home
Class 12
BIOLOGY
Several pollen grains form a unit design...

Several pollen grains form a unit designated as pollinium in Family

A

Asteraceae

B

Cucuribitaceae

C

Asclepiadaceae

D

Brassicaceae

Text Solution

Verified by Experts

The correct Answer is:
C

In Calotropis and related plants of Family Asclepiadaceae, all the pollen grains of an anther lobe remain united in a single sac called pollinium. Two pollinia of adjacent anthers are attached to produce a translator.
Promotional Banner

Similar Questions

Explore conceptually related problems

What is pollen grain ?

Germination of pollen grain on the stigma is :

Pollen grains are non-green due to :

Answer within 200 words : Give a structure of a typical pollen grain and its pre- and post - pollination changes .

Study of pollen grains is called

Transfer of pollen grains from anther to stigma of the same flower.

Assertion : In most angiosperms, microspores of a tetrad grow and separate from one another shortly after meiosis. Reason : In the members of families Orchidaceae and Asclepiadaceae, all the pollen grains of a sporangium remain united to form a compact structure called pollinium.

Give a structure of a typical pollen grain and it's pre- and post-pollination changes.