1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In angiosperm all the four microspores of tetrad are covered by a layer which is formed by
A
pectocellulose
B
callose
C
cellulose
D
sporopollenin.
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
What is the direction of micropyle in anatropous ovule?
A
Upwards
B
Downward
C
Right
D
Left
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Anemophily type of pollination is found in
A
Salvia
B
bottle brush
C
Vallisneria
D
coconut.
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
In grasses what happens in microspore mother cell for the formation of mature pollen grains?
A
One meiotic and two mitotic divisions
B
One meiotic and one mitotic divisions
C
One meiotic
D
One Mitotic division
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CBSE
Class 12