1
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.
2
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
3
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
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
In human adult females oxytocin:
A
causes strong uterine contractions during parturition
B
stimulates pituitary to secrete vasopressin
C
stimulates growth of mammary glands
D
is secreted by anterior pituitary
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