MCQ Bank
………… is a semipermeable membrane, which allows air and moisture to pass through its pores.
- A) Vitelline layer
- B) Egg shell
- C) Plasma membrane
- D) Jelly coat
Which of the following is the correct match?
- A) Holoblastic cleavage-avian
- B) Meroblastic cleavage-mammals
- C) Meroblastic cleavage-flatworms
- D) Holoblastic cleavage-echinoderms
The zona pellucida layer of the egg is associated with ……..
- A) Spermatogenesis
- B) Activation of zygote metabolism
- C) Fertilization
- D) Cleavage
Zygote undergo first cleavage after …….. hours of fertilization in mammals.
- A) 12
- B) 42
- C) 36
- D) 24
Which one of the following definitions describes the term “spermatozoa”?
- A) It is large and non-motile female ovum
- B) It is a diploid zygote
- C) Male sex cells which carry a man’s genetic material
- D) It is a female haploid gamete
A human egg often consists of...... to prevent polyspermy.
- A) Cell membrane
- B) Corona radiata
- C) Zona pellucida
- D) Shell membrane
The third cleavage furrow runs horizontally and produces ………….. blastomeres.
- A) Thirty-two
- B) Four
- C) Sixteen
- D) Eight
Early cleavage occurs in …………. part of mammals.
- A) Ampulla
- B) Womb
- C) Oviduct
- D) Uterus
The yolk is also a source of……… , an effective emulsifier.
- A) Thiamin
- B) Riboflavin
- C) Vitamins
- D) Lecithin
…………. is a source of vitamin A, vitamin D, phosphorus, calcium, thiamine, and riboflavin.
- A) Internal albumin
- B) Middle albumin
- C) Yellow yolk
- D) White yolk
……….. appears as a bright white area in Magnetic Resonance Images. (a) (b) (c) (d)
- A) Yellow yolk
- B) White yolk
- C) Germinal Disc
- D) Albumin
Type of cleavage found in mammals is ………
- A) Holoblastic cleavage
- B) Displaced meroblastic
- C) Rotational holoblastic
- D) Meroblastic cleavage
Which one of the following shows spiral holoblastic cleavage?
- A) Echinoderms
- B) Monotremes
- C) Flatworms
- D) Mammals
A typical human spermatozoon can be divided into ……….sections.
- A) One
- B) Four
- C) Three
- D) Two
A typical egg cell is surrounded by …….. distinct layers.
- A) Three
- B) Four
- C) Two
- D) One
……….. appears as a bright white area in Magnetic Resonance Images.
- A) White yolk
- B) Yellow yolk
- C) Albumin
- D) Germinal Disc
As the egg ages, the air cell becomes …….
- A) Larger
- B) Smaller
- C) Miniature
- D) Empty
Which one of the following definitions describes the term “blastoderm”?
- A) It is a plug of whitish yolk.
- B) A small, circular, yellow spot on the surface of the albumin
- C) A small, circular, white spot on the surface of the yolk
- D) It gives rise to the placenta.
The nucleus of the egg is present in the……...
- A) Blastodisc
- B) Nucleus of pander
- C) Albumin
- D) Yolk
……… is also called chalaziferous albumen.
- A) White yolk
- B) Middle albumin
- C) Exterior albumin
- D) Internal albumin