471.
Type of cleavage in an egg is determined by
A
Amountand distribution of yolk
B
Number of egg membranes
C
Size and location of nucleus
D
Shape and size of sperm
Answer :
Amountand distribution of yolk
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472.
About which day in a normal human menstrual cycle does rapid secretion of LH (Popularly called LH-surge) normally occurs?
A
$${14^{th}}\,{\text{day}}$$
B
$${20^{th}}\,{\text{day}}$$
C
$${5^{th}}\,{\text{day}}$$
D
$${11^{th}}\,{\text{day}}$$
Answer :
$${14^{th}}\,{\text{day}}$$
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473.
In mammals, egg is fertilised in
A
Ovary
B
Fallopian tube
C
Uterus
D
Vagina
Answer :
Fallopian tube
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474.
In between spermatogonia are found
A
Germinal cells
B
Sertoli cells
C
Epithelial cells
D
Lymph space
Answer :
Sertoli cells
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475.
Lte gastula has
A
Ectoderm
B
Mesoderm
C
Endoderm
D
All of the above
Answer :
All of the above
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476.
Frog is
A
Refiex ovulator
B
Spontaneous ovulator
C
Non ovulator
D
None of the above
Answer :
Refiex ovulator
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477.
Process of formation of an individual without contribution of father is called as
A
Epigenesis
B
Pangenesis
C
Induction
D
Parthenogenesis
Answer :
Parthenogenesis
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478.
Cleavage start in man in
A
Fallopian tube
B
Uterus
C
Vagina
D
None of the above
Answer :
Fallopian tube
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479.
Type of fertilization+n (external or internal) depends on
A
Structure of egg
B
Stite of embryo development
C
Type of sperm
D
A and B both
Answer :
A and B both
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480.
Testes are permanently retained in abdominal cavity in
A
Elephant
B
Whale
C
Armadillo
D
Allthe above
Answer :
Allthe above
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