The _________ is a temporary organ that connects a mammalian mother to its foetus
(a) Placenta
(b) Chorion
(c) Endometrium
(d) None of the above
Answer:(a)
The ________ is an ovoviviparous animal
(a) Basking shark
(b) Bonobo
(c) Blue shark
(d) None of the above
Answer:(a)
__________ is an example of an oviparous animal
(a) Pidgeon
(b) Elephant
(c) Sheep
(d) None of the above
Answer:(a)
_________ is an example of a viviparous animal.
(a) Goat
(b) Duck
(c) Crocodile
(d) None of the above
Answer:(a)
Acrosome is filled with _________
(a) Lipids
(b) Hormones
(c) Digestive enzymes
(d) None of the above
Answer:(c)
Wolffian duct is also known as ____________
(a) Mesonephric duct
(b) Ejaculatory duct
(c) Major sublingual duct
(d) Cystic duct
Answer:(a)
The hormone that is released from the testes is ______
(a) Progesterone
(b) Vasopressin
(c) Testosterone
(d) None of the above
Answer:(c)
Bidder’s canal receives __________
(a) Eggs
(b) Sperms
(c) Ammonia
(d) Oxygenated blood
Answer:(b)
Cryptorchidism is a condition where _________
(a) One of both testes are not developed
(b) One or both testes fail to descend into the scrotum
(c) One or both testes are not formed
(d) None of the above
Answer:(b)
_______ is a lytic enzyme released by the sperm.
- Hyaluronidase
- Trypsin
- Helicase
- None of the above
Answer:(a)
How many autosomes does a human primary spermatocyte have?
- 34
- 44
- 54
- 33
Answer:(b)
Where does the ovum receive the sperm?
- Animal pole
- Vegetal pole
- Zona pellucida
- None of the above
Answer:(a)
___________is an organelle that helps the sperm to penetrate the ovum
- Acrosome
- Zona pellucida
- Megalis
- None of the above
Answer:(a)
Umbilical cord contains _________
- Pluripotent stem cells
- Cord blood stem cells
- Blood stem cells
- None of the above
Answer:(b)
How does human sperm locomote?
- Flagella
- Cilia
- Neutrophils
- None of the above
Answer:(a)
Ovulation in the human female normally takes place during the menstrual cycle
(a) at the mind secretory phase
(b) just before the end of the secretory phase
(c) at the beginning of the proliferative phase
(d) at the end of the proliferative phase.
Answer:
(d)
After ovulation Graafian follicle regresses into
(a) corpus atresia
(b) corpus callosum
(c) corpus luteum
(d) corpus albicans
Answer:
(c)
Immediately after ovulation, the mammalian egg is covered by a membrane known as
(a) chorion
(b) zona pellucida
(c) corona radiata
(d) vitelline membrane.
Answer:
(c)
Which one of the following events is correctly matched with the time period in a normal menstrual cycle ?
(a) Release of egg : 5 th day
(b) Endometrium regenerates : 5 – 10 days
(c) Endometrium secretes nutrients for implantation: 11 – 18 days
(d) Rise in progesterone level : 1 – 15 days
Answer:
(b)
If mammalian ovum fails to get fertilised, which one of the following is unlikely ?
(a) Corpus luteum will distintegrate.
(b) Progesterone secretion rapidly declines.
(c) Estrogen secretion increases.
(d) Primary follicle starts developing.
Answer:
(c)
A human female reaches menopause aroung the age of
(a) 50 years
(b) 15 years
(c) 70 years
(d) 25 years.
Answer:
(a)
A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is
(a) acrosomal reaction
(b) cortical reaction
(c) acrosin reaction
(d) bindin reaction.
Answer:
(b)
Which part of the sperm plays an important role in penetrating the egg membrane ?
(a) Allosome
(b) Tail
(c) Autosome
(d) Acrosome
Answer:
(d)