1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Through which cell of the embryo sac, does the pollen tube enter the embryo sac?
A
Egg cell
B
Persistant synergid
C
Degenerated synergids
D
Central cell
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Grey crescent is the area -
A
Just opposite to the site of entry of sperm into ovum
B
At the point of entry of sperm into ovum
C
At the vegetal pole
D
At the animal pole
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
If mammalian ovum fails to get fertilized, which one of the following is unlikely
A
Corpus luteum will disintegrate
B
Estrogen secretion further decreases
C
Primary follicle starts developing
D
Progesterone secretion rapidly declines
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Haemophilia is more commonly seen in human males than in human females because -
A
This disease is due to an X-linked dominant mutation
B
This disease is due to a Y-linked recessive mutation
C
This disease is due to an X-linked recessive mutation
D
A greater proportion of girls die in infancy