Question
Biology Question on sexual reproduction in flowering plants
Which of the following statements regarding the structure of microsporangium are correct? (i) Microsporangium is generally surrounded by four wall layers - epidermis, endothecium, middle layers and tapetum. (ii) Outer three layers perform functions of protection and dehiscence of anthers. (iii) Cells of tapetum undergo meiosis and produce microspore tetrads.
A
(i) and (ii)
B
(ii) and (iii)
C
(i) and (iii)
D
(i), (ii) and (iii)
Answer
(i) and (ii)
Explanation
Solution
A microsporangium or future pollen sac is a cylindrical sac which appears circular in transverse section. It consists of two parts, outer wall and central homogeneous sporogenous tissue. Microsporangial wall has four types of layers ?