401.
Which one of the following statements is false in respect of viability of mammalian sperm?
A
Sperm is viable for only up to 24 hours
B
Survival of sperm depends on the pH of the medium and is more active in alkaline medium
C
Viability of sperm is determined by its motility
D
Sperms must be concentrated in a thick suspension
Answer :
Sperm is viable for only up to 24 hours
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402.
Vagina of the female reprodctive system is
A
Primary sex organs
B
Essential sex organs
C
Secondary sex organs
D
None of the above
Answer :
Secondary sex organs
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403.
At the time of birth, ovum is the form of
A
Oogonia
B
Pri4mary oocyte
C
Sec. oocytes
D
Egg
Answer :
Pri4mary oocyte
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404.
If testes of male rabbit are not transferred from abdominal cavity to testes sac then
A
Rabbit dies
B
Absence of male characters
C
Development of male reproductive system will not occur
D
Sperms will not form
Answer :
Sperms will not form
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405.
Longest phase of spermatogenesis is
A
Multiplication phase
B
Growth phase
C
Maturation phase
D
Germinal phase
Answer :
Growth phase
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406.
Human placenta is
A
Haemochorial
B
Syndemoschorial
C
Yolk sad
D
Haemo-endothelial
Answer :
Haemochorial
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407.
Natural parthenogenesis occur in
A
Dog
B
Honey - bee
C
Frog
D
House-fly
Answer :
Honey - bee
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408.
First meiotic division during Oogenesis occurs in
A
First polar body
B
Second polar body
C
Primary oocytes
D
Secondary polar body
Answer :
Primary oocytes
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409.
In majority of pre mature babies testis is situated in
A
Scrotal sac
B
Abdominal cavity
C
Descending pathway
D
Come into scrotal sac but attached proerty
Answer :
Descending pathway
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410.
Smallest sperm occurs in
A
Rabbit
B
Crocodiles
C
Balanoglossus
D
Ascaries
Answer :
Crocodiles
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