Question

Choose the correct statements among the following
I. Exine exhibits an array of patterns and designs.
II. Tapetum layers of microsporangium will be useful for the dehiscence.
III. The intine wall of pollengrains is made up cellulose and pectin.
IV. By wall formation, 8 celled embryo sac is developed.

• A. I and II
• B. I and III
• C. II and III
• D. III and IV

Hint:

Focus on pollen wall composition (exine, intine) and embryo sac formation steps for clarity in reproductive structures.

Answer 1

The Correct Option is B

I) Correct — The exine of pollen grain has intricate designs unique to species.
II) Incorrect — Tapetum nourishes developing microspores but is not directly involved in dehiscence.
III) Correct — Intine is made of cellulose and pectin.
IV) Incorrect — 8-celled embryo sac develops by nuclear division, not wall formation.