M.Sc. (Semester II) (CBCS) Examination Nov/Dec-2018
Zoology
DEVELOPMENTAL BIOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: Q.1, 2 6 are compulsory.
Answer any two questions from Q.3, 4 and 5.
Q.1 Choose the correct alternatives and rewrite the sentence:- 14
In Mammalian egg the vitelline membrane exist in the form of
Zona pellucida Corona radiata
Cortex Area pellucida
In mammals the trophoblast cell gives rise to the
Embryo Allantois
Chorion Yolk sac
The part of the sperm containing proteolytic enzymes to digest the zona
pellucid is the
Capacitor Middle piece
Acrosome Corona
effect of gene products regulates production of anterior
structure in Drosophila embryo
Nanos Bicoid
Caudal Noggin
Fertilization of ova in human takes place in the end of
Fallopian tube Endometrium
Vagina Uterus
Which cellular organelles are involved in the initiation of the intrinsic
pathway of apoptosis?
Mitochondria RER
Nucleus SER
Which of the following is anti-apoptotic factor?
Bax Bcl-2
Bad Bid
Q.2 What is cleavage? Describe in detail the various pattern of cleavage among
different animals?
14
Q.3 Answer the following:-
Molecular changes during capacitation of the sperm. 07
Explain the regulation of development in Drosophila. 07
Q.4 Explain the following:-
Blastulation in chick 05
Mechanism of intrinsic apoptosis 05
Egg activation 04
Q.5 Explain in short
Formation of primitive streak in chick 07
Describe the structure of Amphibian egg after fertilization. 07
Page 2 of 2
SLR-VS-506
Q.6 Write short notes. (Any four) 14
Cortical reaction
Role of Apoptosis in human limb
Sexual reproduction in Eukaryotes
Blastulation in mammals
Gastrulation in Chick
Telolecithal egg