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  • Gargi College, Delhi University

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Sample Topics

Biochemistry

Biochemistry is a sub-discipline of both biology and chemistry. It deals with the chemical processes within and relating to living organisms. Biochemistry deals with the functions, structures, and interaction of biological macromolecules and their association with life. The biochemistry is diversified into three fields: molecular genetics, protein science, and metabolism.
Sample Questions:

1.Net equation for glycolysis and the citric acid cycle?

2.An aminoacyl tRNA analog causes premature polypeptide chain termination is:

a)Puromycin

b)Tetracycline

c)Erythromycin

d)Streptomycin

3.  How many ATPs are produced incomplete oxidation of palmitic acid

a)129

b)132

c)131

d)140 

4. When ATP molecule is hydrolyzed into ADP, it releases———calories of energy?

a)730

b)7300

c)68600

d)73000

Cell-Biology

Cell- biology deals with the physiological, metabolic, signaling pathways and life cycles of the cell. The components of the cell are studied to understand the fundamental properties and their mechanism. Cell-biology plays a crucial role in the bio-medical fields such as cancer and other diseases. This branch is associated with genetics, biochemistry, molecular biology, immunology, and cytochemistry.
Sample Questions: 

1.Which of these units is most suitable for measuring the length of a cell?  


a) Kilometer  


b) Meter  


c) Centimeter  


d) Micrometer


2. Give two differences between plant and animal cells?


3. In an osmosis experiment, after 45 minutes, a potato cylinder had lost 2.4 g in mass.Calculate the rate of water loss from the potato cylinder in grams per hour?


4. Describe the similarities and differences between the processes of diffusion and osmosis?

Ecology & Evolution

This subject helps the student to understand the relationships between different organisms and their relationship with surroundings and how these surroundings help the organisms to change their characteristics over generations. This subject deals with different levels of hierarchy like the organisms, group of organisms (populations), group of populations (communities). The process of evolution is very complex and difficult to understand as there are many connecting links available in nature, which are obtained from fossil studies.
Sample Questions:

1.How does evolution play a role in ecology? In your opinion, are evolution and ecology separate fields of study?  

2. Describe the role of ecology in food production, disease spread, exotic species invasions, and pest management. Can you think of an example for each and describe the important ecological interactions? What are the consequences of disruptions to these interactions?  

3.How has ecology influenced evolution? What is the relationship between an organism and its environment?

Genetics

Genetics is a branch of biology deals with the study of genes, genetic variation and heredity of organisms. The molecular inheritance mechanism and trait study are the major principles in genetics. Genetics has several subfields including behavioral genetics, epigenetics, and population genetics.
Sample Questions:

1. The difference between the test cross and back cross?


2. Suppose A Father of Blood Type-B and A Mother of Blood Type-O have a Child of Type-O. What are the chances that their Next Child will be Blood Type-O? Type B? Type A? Type Ab?


3.  Describe the New Theory of Introns?4. Does a codon specifies one of which of the following? 


a) Protein


b) DNA


c) Carbohydrate


d) Amino acids

Microbiology

This subject helps the student to understand how to grow and culture the microorganisms and how to apply these studies in different areas like agriculture, food industries, health and medicine etc. While many microorganisms are beneficial, and many are harmful which may cause many diseases in humans and animals.
Sample Questions:

1.     How would you isolate a thermophilic chemolithotroph that uses sulphur compounds as a source of energy and electrons? What changes in the incubation system would be needed to isolate bacteria using sulphur compounds in anaerobic respiration? How would you tell which process is taking place through an analysis of the sulphur molecules present in the spent medium?


2.What would be the phenotype of an E. coli strain in which the tandem trp codons in the leader region were mutated so that they coded for serine instead?


3.Suppose that you insered a plasmid vector carrying a human interferon gene into E. coli but none of the transformed bacteria produced interferon. Give as many plausible reasons as possible for this result.  


4.What are some logical physiological or morphological targets to exploit in treating animals or plants suffering from fungal infections? Compare these with the targets you would use when treating infections caused by bacteria.

Nutrition

The science that studies the interaction of nutrients in the body through the consumption of food is known as Nutrition. It identifies the role of nutrients on the body and how it helps in promoting growth and good health.  The subject of nutrition science is based on a major amount of research and studies carried out to understand the importance of a specific component and its interactions in the body. It includes the understanding of the chemistry of the biological components within the body. The dietary reference index provides the values of nutrient intakes based on age and health conditions.
Sample Questions:

1. Illustrate two ways in which good blood glucose control during the periconeptional period can benefit fetal growth and development

2. Distinguish the different types of hypertensive disorders that occur during pregnancy, and connect two components of nutrition care recommended for women with each type.

3. Connect the different, major types of disorders in carbohydrate metabolism that occur during pregnancy and the key components of the nutritional management of each type.  

4. Describe the components of a healthy diet during middle childhood and preadolescence as recommended by health and professional organizations and agencies.