321.
Germ cells in vertebrate gonads are produced by
A
Only meiosis
B
Only mitosis
C
Meiosis & mitosis both
D
Maturation with out cell division
Answer :
Meiosis & mitosis both
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322.
Leathery Egg are found in
A
Amphibia
B
Reptiles
C
Birds
D
Mammals
Answer :
Reptiles
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323.
Surgical removal or cutting and ligation of the ends of oviduct is known as
A
Tubectomy
B
Oviductomy
C
Castration
D
Vasectomy
Answer :
Tubectomy
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324.
In which of the following mosaic cleavage occurs
A
Camel
B
Whale
C
Dog fish
D
Echinococcus granulosus
Answer :
Echinococcus granulosus
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325.
During which stage of gametogenesis meiosis occurs
A
Growth phase
B
Multiplication phase
C
Maturation phase
D
None of the above
Answer :
Maturation phase
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326.
Which one develops from endodermis
A
Nervous system uninary blader and eye
B
Liver, connective tissue and heart
C
Thymus, spiral cord and brain
D
Liver, pancreas and thymus/thyroid
Answer :
Liver, pancreas and thymus/thyroid
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327.
Gestation period of Rabbit is
A
18-20 days
B
28-32 days
C
48-50 days
D
60-70 days
Answer :
28-32 days
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328.
The part whre fertilization of ovum occurs in placental mammals is
A
Ovary
B
Uterus
C
Vagina
D
Fallopian tube
Answer :
Fallopian tube
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329.
If cowpers gland is removed which of the following will be affected
A
Sexual attraction
B
Fertilization
C
Hardness of penis
D
Copulation
Answer :
Fertilization
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330.
Progesterone level falls leading to
A
Gestation
B
Menopause
C
Lactation
D
Mensturation
Answer :
Mensturation
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