The exine of pollen grain is made up of

Options :
  1. cellulose
  2. pectocellulose
  3. lignin
  4. sporopollenin

Answer and Explanation :-

Answer: Option 4


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : The entrance of pollen tube through micropyle is

Next Question : The number of chromosomes in egg is 8. The chromosome numbers in endosperm cell will be

Click here for free online test on Physiology


 (Getemail alerts when others member replies)

I felt a wave of longing roll out of me, but not the way it usually did, diffuse and sad. This was hopeful, as though it had been coaxed out by a whispered promise.
-Michele Jaffe Ghost Flower