501.
Which set of structures is ectodermal in orgin
A
Brain, liver, gills
B
Spinal cord, heart, epidermis
C
Epidermis, brain, retina
D
Dermis, lung, nerves
Answer :
Epidermis, brain, retina
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502.
Vaginal cavity of tunicalvaginalis is found in
A
Ovariesof female
B
Testis of male
C
Vagina of female
D
None of the above
Answer :
Testis of male
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503.
Types of cleavage in centrolecithal eggs
A
Spiral
B
Superficial
C
Discoidal
D
Unequal holoblastic
Answer :
Superficial
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504.
Which substance can be used as male contraceptive in future
A
FSG
B
LH
C
Testosterone
D
Progesterone
Answer :
Progesterone
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505.
Scrotal sacs of man and rabbit are connected with the abdominal cavity by
A
Inguinal canal
B
Haversian canal
C
Vagina cavity
D
Spermatic canal
Answer :
Inguinal canal
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506.
What is formed at the time of gastrulation
A
Gills
B
Heart
C
Myotome
D
Archenteron
Answer :
Archenteron
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507.
In the absence of prignancy. Corpus luteum
A
Becomes active, secretes FSH and LH
B
Produces lot of oxytiocin and relaxin
C
Degenerates after some time
D
Is maintained by progesterone.
Answer :
Degenerates after some time
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508.
The type of placenta fund in human beings is of types
A
Diffuse
B
Zonary
C
Cotyledonary
D
Discoidal
Answer :
Discoidal
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509.
Egg with peripheral cytoplasm around the yolk is
A
Isolecithal
B
Microlecithal
C
Telolecithal
D
Centrolecithal
Answer :
Centrolecithal
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510.
The first indication of division of labour in the blastomeres appear at
A
Murula stage
B
Blastula stage
C
Gastrula stage
D
Neurul stage
Answer :
Gastrula stage
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