1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
The blood calcium level is lowered by the deficiency of
A
both calcitonin and parathormone
B
calcitonin
C
parathormone
D
thyroxine.
2
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.
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 2008
MCQ (Single Correct Answer)
+4
-1
Which one of the following is resistant to enzyme action?
A
Pollen exine
B
Leaf cuticle
C
Cork
D
Wood fibre
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