Mention any two examples of oncogenic viruses. Make a flow-chart to show the steps involved in cellular transformation by a RNA tumor virus.

Elucidate the different control points of gene expression in organisms. Discuss most prevalent mode of control of gene expression in prokaryotes.

Elucidate the different control points of gene expression in organisms. Discuss most prevalent mode of control of gene expression in prokaryotes.

What is polyploidy? Make a distinction between autopolyploidy and allopolyploidy. Explain their role in plant breeding by giving suitable examples.

With the help of clear and labelled diagrams describe the four types of structural abnormalities that occur in chromosomes.

Complete and Incomplete Linkage.

Dominant and Recessive Epistasis.

With a suitable cross describe Mendel’s Law of Independent Assortment.

Explain the structural organization and major molecular components of plant cell wall.

With the help of diagrams describe the structure and function of any five types of epithelial tissues found in animals.

Describe the structural components of communicating junctions found both in plants and animals.

Show the stages of meiotic division with the help of well labelled diagrams.

Describe the events of cells cycle.

Explain the role of cAMP as second messenger during signalling.

How is protein synthesis regulated at translational level?

Explain the semi-conservative replication of DNA and list the enzymes involved, in this process.

How is glycogen synthesized?

Outline the reaction steps of tricarboxylic acid cycle.

What is a transport molecule? With the help of an example describe the process of active transport by ion gradient.

What is mediated permeability and how is it different from simple diffusion?