241.
First cleavage plane is normally
A
Right angle to entry site of sperm
B
Parallel to entry site of sperm
C
Right angle to pole axis
D
Random
Answer :
Right angle to entry site of sperm
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242.
Secondary sex organ is
A
Testis
B
Ovary
C
Beard
D
Vasa deferens
Answer :
Vasa deferens
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243.
Completion of gastrulation is indicated by
A
Obliteration of archenterone
B
Obliteration of blastocoel
C
Closing of blastopore
D
Closing of neural tube
Answer :
Obliteration of blastocoel
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244.
Egg is liberated from ovary in
A
secondary oocyte stage
B
primary oocyte stage
C
oogonial stage
D
mature ovum stage
Answer :
secondary oocyte stage
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245.
Noncleiodic eggs occur in
A
Birds
B
Fish
C
Reptiles
D
Platypus
Answer :
Fish
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246.
Which is not correct about sustenacular cells
A
It is situated in between the germinal epithelial cells
B
It is related with nutrition of sperm
C
It forms blood testis barrier
D
It forms testosterone from oestrogen
Answer :
It forms testosterone from oestrogen
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247.
Parturition duct in female is called
A
Uterus
B
Oviduct
C
Vagina
D
Cervix
Answer :
Vagina
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248.
In case of nonfertilization, corpus luteum
A
Stops secrting progesterone
B
Changes to corpus albicans
C
Starts producing progesterone
D
None of the above
Answer :
Changes to corpus albicans
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249.
In gastruation, which is (are) formed
A
Endoderm
B
Mesoderm
C
Etoderm, endoderm
D
Ectoderm, mesoderm, endoderm
Answer :
Ectoderm, mesoderm, endoderm
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250.
Common duct formed by union of vas- deferens and duct from deminal vesicle is
A
Urethra
B
Tunica-vasculosa
C
Ejaculatoy duc
D
Spermatic duct
Answer :
Ejaculatoy duc
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