B.Sc. III (Biotechnology) (Semester (Old CGPA) Examination, 2018
Animal Development
Day and Date Tuesday, 20-11-2018 Total Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Draw neat and labeled diagrams wherever necessary.
Figures to right indicate full marks.
1. Rewrite the following sentences by using correct alternative. 14
In, 1940 proposed the Mosaic theory.
Weismann Roux
Driesh Child
Weismann recognized units of heredity as
Genes Determinants
Factors All of these
Spermiogenesis means
Conversion of spermatogonia into spermatids
Formation of spermatids
Conversion of spermatids into sperms
Formation of spermatogonia
Intertitial cells is also called as cells.
Sertoli Leydig
Sperm Spermatogonial
Cortical granules contains
Proteins Acid mucopolysachharides
Lipids Fatty acids and glycerol
Human eggs shows type of cleavage.
Incomplete Partially complete
Complete Meroblastic
Insect egg is an example of
Centrolecithal Telolecithal
Mesolecithal Microlecithal
According to Gilchrist the prospective is called of involution''.
Ectodermal zone Endodermal zone
Mesodermal zone Notochordal zone
Development of an egg without fertilization is called as
Parthenogenesis Reproduction
Cloning Metamorphosis
10) Spreading of malignant cells from primary site to distant sites is called as
Metastasis Morphogenesis
Metamorphosis Organogenesis
11) is an example of sexual reproduction.
Conjugation Binary fission
Gemmule formation Budding
12) Age spots are result of an excess production of
Hormone Antioxidants
Melanin Albumin
13) During metamorphosis cells are destroyed through process called
Necrosis Apoptosis
Cell quit All of these
14) is an example of anti-oncogene.
p53 Rb c-myc both a and b
2. Answer the following questions (any 4). 8
What is gradient theory
ii) What are antioxidants
iii) What is polyspermy
iv) Write a note spermiogenesis.
Give structure of Graffian follicle.

Answer the following questions (any 2). 6
Write properties of cleavage.
ii) Define invagination and involution.
iii) Hormonal control of spermatogenesis.
3. Answer the following questions (any 2). 8
Describe T.S. of ovary with neat labeled diagram.
ii) Describe regeneration in invertebrates with suitable example.
iii) Describe post-fertilization changes in egg cytoplasm.

Answer the following (any 1). 6
Describe blastulation in telolecithal egg with suitable example.
Write a note on stem cells.
4. Answer the following questions (any 2). 10
Describe process acrosome reaction and cortical reaction.
ii) Explain different planes and types of cleavage with suitable examples.
iii) Describe meatamorphosis in amphibians suitable examples.

Answer the following (any 1). 4
Explain free radical theory of aging.
Describe process of gastrulation in frog with neat labeled diagram.
5. Answer any two of the following 14
Describe different types of cancer with suitable examples.
ii) Describe process of gastrulation in chick with neat labeled diagram.
iii) Explain process of oogenesis with neat labeled diagram.