31.
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testes is:
A
spermatogonia - spermatocyte - spermatid- sperms
B
spermatid - spermatocyte - spermatogonia - sperms
C
spermatogonia - spermatid - spermatocyte - sperms
D
spermatocyte - spermatogonia - spermatid - sperms
Answer :
spermatogonia - spermatocyte - spermatid- sperms
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32.
Yolk containing cytoplasm is called
A
Ooplasm
B
Protoplasm
C
Deutoplasm
D
Trophoplasm
Answer :
Deutoplasm
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33.
Cortical granules composed of
A
Albumin
B
Keratin
C
Mucopolysaccharide
D
Melanin
Answer :
Mucopolysaccharide
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34.
Oral-contraceptives prevent the
A
Fertilisation
B
Ovulation
C
Implantation
D
Entrance of sperms in vagina
Answer :
Ovulation
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35.
Number of eggs released in thelife time of a woman is approximately
A
40
B
400
C
4000
D
20000
Answer :
400
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36.
Which cell inclusion of the spermatic forms the acrosome of the sperm
A
Centriole
B
Golgibody
C
Mitochondria
D
Nucleus
Answer :
Golgibody
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37.
Loss of reproductive capacity in women after age of 45 years is
A
Menstruation
B
Ageing
C
Menopause
D
Menarche
Answer :
Menopause
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38.
Extra-embryonic membranes of the mammalian embryo are derived from
A
inner cell mass
B
trophoblast
C
formative cells
D
follicle cells
Answer :
trophoblast
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39.
Which part of sperm enters in egg in human
A
Complete sperm
B
Only head
C
Head & middle piece
D
Head + acrosome
Answer :
Complete sperm
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40.
In which of the following animal clevage divisions are restricted to a small part of cytolasm & nucleus in animal pole of egg
A
Cockroach
B
Frog
C
Chick
D
Rabbit
Answer :
Chick
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