This document contains exam information for four papers for the M.Sc. II Semester Examination in Zoology in June 2021. It provides the paper title, maximum marks, and instructions to attempt all questions, which are of equal marks. For each paper, it lists the five questions that will be included in that exam. The questions cover topics in animal physiology, ecology, techniques in biology, and molecular cell biology/genetics.

1. S/151
M.Sc. II Semester Examination June 2021
Zoology
Paper : I
General and Comparative Animal Physiology and Endocrinology of Vertebrates
Maximum Marks : 80
Note : Attempt all questions. All questions carry equal marks.
1. Describe transport of oxygen and carbon-di-oxide in blood and body fluids.
2. Write an account on nitrogenons excretion in different animal groups.
3. Write an account on comparative study of mechanoreception.
4. Describe mechanisms of hormone action (a) protienous hormones (b) steroidal hormones.
5. Write an essay on Hormones and Reproduction.

2. S/152
M.Sc. II Semester Examination June 2021
Zoology
Paper : II
Population Ecology and Environmental Physiology
Maximum Marks : 80
Note : Attempt all questions. All questions carry equal marks.
1. Describe populations and their characters.
2. Describe Eco-physiological adaptations to fresh water environments.
3. Describe Inter and Intra-specific relationship.
4. Write an essay on conservation and management of natural resources.
5. Describe physiological response to body exercise, meditation, yoga and their effects.

3. S/153
M.Sc. II Semester Examination June 2021
Zoology
Paper : III
Tools and Techniques in Biology
Maximum Marks : 80
Note : Attempt all questions. All questions carry equal marks.
1. Describe general principal, instrumentation and application of
a) Colorimeter
b) Spectrophotometer
2. Describe Microbiological Techniques:
a) Types of Bacterial culture media and sterilization
b) Inoculation Method
3. Describe Radioactivity:
a) Types of applications of different radioisotopes
b) Sample preparation for radioactive counting
4. Write note on Histological techniques
a) Dehydration of tissue and paraffin block preparation
b) Fixatives & Fixation of tissue
5. Write note on:
a) Southern and northern hybridization
b) DNA sequencing methods.

4. S/154
M.Sc. II Semester Examination June 2021
Zoology
Paper : IV
Molecular Cell Biology and Genetics
Maximum Marks : 80
Note : Attempt all questions. All questions carry equal marks.
1. Explain transport across cell membrane.
2. Describe gap junctions and connections.
3. Write about non coding DNA and its importance.
4. Describe sex determination in Drosophila.
5. Explain Human genetic disorders and gene therapy.