MCQ Bank
The function of …… is purely a nutritive one, like the rest of the yolk.
- A) Air cell
- B) Chalaza
- C) Nucleus of pander
- D) Blastoderm
What difference exists between a cuticle and an air cell?
- A) The cuticle prevents yolk mottling, while the air cell prevents polyspermy.
- B) The cuticle is made of calcium carbonate, while the air cell is made of keratin.
- C) The cuticle is the outer coating of the egg, while the air cell rests between shell membranes.
- D) The cuticle keeps the yolk centred, while the air cell acts as a shock absorber.
……… is an area of white yolk located in the center of the yolk.
- A) Blastodisc
- B) Latebra
- C) Nucleus of pander
- D) Germinal disc
The meroblastic cleavage takes place in the fertilized egg with ………
- A) Sparse amount of yolk
- B) Large amount of yolk
- C) Little or no amount of yolk
- D) Moderate amount of yolk
The first cleavage plane in mammalian zygote is ……..
- A) Spiral
- B) Latitudinal
- C) Meridional
- D) Equatorial
The head region of sperm usually consists of ………..
- A) Haploid nucleus, ooplasm, mitochondria
- B) Axoneme, mitochondria, centrioles
- C) Acrosome cap, axoneme, centrioles
- D) Haploid nucleus, centrioles and acrosome cap
Human male gamete (sperm) is mainly divided into ………..
- A) Head, mitochondria, tail
- B) Nucleus, acrosome cap, centrioles
- C) Acrosome cap, mid-piece, tail
- D) Head, mid-piece, tail
The region of the oviduct that is close to the ovary is ……..
- A) Infundibulum
- B) Uterine
- C) Isthmus
- D) Ampulla
In mammals, fertilization occurs in the ….. region of the oviduct.
- A) Infundibulum
- B) Ampulla
- C) Fallopian
- D) Isthmus
The holoblastic cleavage takes place in the embryonic cells that contain a ........
- A) Moderate or sparse yolk in the ovum
- B) Moderate yolk in the ovum
- C) Large amount of yolk in the ovum
- D) Sparse yolk in the ovum
The corona radiata layer of the egg is associated with ………
- A) Growth of oocytes
- B) Production of hormones
- C) Fertilization
- D) Nourishment
Which one of the following shows meroblastic cleavage?
- A) Nematodes
- B) Avian
- C) Mammals
- D) Echinoderms
Cleavage of the zygote occurs soon after …….
- A) Gametogenesis
- B) Oogenesis
- C) Spermatogenesis
- D) Fertilization
The ………. is a dense, matted, fibrous capsule of albumen around the vitelline membrane of the yolk.
- A) Albumin
- B) Internal albumin
- C) Exterior albumin
- D) Middle albumin
………. technique is used for detection of eggs of different parasitic round worms that are shed in feces.
- A) Zinc sulphate flotation
- B) Sodium Chloride flotation
- C) FLOTAC
- D) Stoll’s dilution egg-counting
Species of Trichostrongylus are mostly parasites of …….
- A) Carnivore
- B) Omnivores
- C) Herbivores
- D) Frugivore
In the absence of ........ , fingerprints are used by the criminal justice system to verify a convicted offender’s identity and track useful information.
- A) Protein profiles
- B) Northern blot
- C) DNA profiling
- D) RNA profiling
Members of phylum nematode are called ………
- A) Segmented worms
- B) Wheel worms
- C) Flatworms
- D) Roundworms
Dactylography refers to the scientific study of ............. as a method of identification.
- A) Fingerprints
- B) RNA
- C) DNA
- D) Protein
The synthetic hormone ……. has been widely used for inducing ovulation is fish.
- A) Antiestrogens
- B) Ovaprim
- C) Luteinizing hormone-releasing hormone (LH-RH)
- D) Human Chorionic Gonadotropin (HCG)