Question
Biology Question on sexual reproduction in flowering plants
A dithecous anther consists of (i) microsporangia, (ii) in each lobe.
A
a
B
b
C
c
D
d
Answer
a
Explanation
Solution
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