Question

The microsporophylls of Pinus has [Pune CET 1998]
A) Many microsporangia
B) No microsporangia
C) 2 microsporangia
D) Only one microsporangium

Answer 1

Explanation:

Male cone consists of central axis, which bears many spirally arranged microsporophylls. It has a short stalk and sterile slightly bent tip. Microsporangia are borne on abaxial or lower surface of microsporophylls (the modified leaves). Each microsporophyll bears two microsporangia or pollen sacs, on lower surface.