1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
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Which one of the following statements is false in respect of viability of mammalian sperm?
A
Viability of sperm is determined by its motility
B
Sperms must be concentrated in a thick suspension
C
Sperm is viable for only up to 24 hours
D
Survival of sperm depends on the pH of the medium and is more active in alkaline medium
2
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?
A
11th day
B
14th day
C
20th day
D
5th day
3
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
What happens during fertilization in humans after many sperms reach close to the ovum?
A
Only two sperms nearest the ovum penetrate zona pellucida
B
Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida
C
All sperms except the one nearest to the ovum lose their tails
D
Cells of corona radiate trap all the sperms except one.
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for :
A
providing a secondary sexual feature for exhibiting the male sex
B
maintaining the scrotal temperature lower than the internal body temperature
C
escaping any possible compression by the visceral organs
D
providing more space for the growth of epididymis
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