1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
What does the filiform apparatus do at the entrance into ovule?
A
In brings about opening of the pollen tube.
B
It guides pollen tube from a synergid to egg.
C
It helps in the entry of pollen tube into a synergid.
D
It prevents entry of more than one pollen tuve into the embryo sac.
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following pairs of plant structures has haploid number of chromosomes ?
A
Nucellus and antipodal cells
B
Egg nucleus and secondary nucleus
C
Megaspore mother cell and antipodal cells
D
Egg cell and antipodal cells
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Unisexuality of flowers prevents
A
geitonogamy, but not xenogamy
B
autogamy and geitonogamy
C
autogamy, but not geitonogamy
D
both geitonogamy and xenogamy.
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Male gametes in angiosperms are formed by the division of
A
generative cell
B
vegetative cell
C
microspore mother cell
D
microspore.
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