1
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following statements is wrong?
A
When pollen is shed at two-celled stage, double fertilization does not take place.
B
Vegetative cell is larger than generative cell.
C
Pollen grains in some plants remain viable for months.
D
Intine is made up of cellulose and pectin.
2
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
What is the function of germ pore?
A
Emergence of radicle
B
Absorption of water for seed germination
C
Initiation of pollen tube
D
Release of male gametes
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is
A
cuticle
B
sporopollenin
C
lignin
D
cellulose.
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Even in absence of pollinating agents seed-setting is assured in
A
Commelina
B
Zostera
C
Salvia
D
fig.
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