Question

A dithecous anther consists of (i) microsporangia, (ii) in each lobe.

	(i)	(ii)
(a)	four	two
(b)	two	one
(c)	two	two
(d)	four	one

• A. a
• B. b
• C. c
• D. d

Answer 1

Answer: (A)

A stamen or male reproductive organ of a flower is made up of two parts- a stalk-like filament and a knob like terminal anther. Each anther has two lobes which are attached at the back by a sterile band called connective. When both the anther lobes are present, the stamen is called bithecous (or dithecous). A dithecous anther is tetrasporangiate having four microsporangia. Each lobe has two microsporangia separated by a strip of sterile tissue. When a single anther lobe is present, the stamen is termed as monothecous