Short Answer TypeState two postulates of Oparin and Haldane with reference to origin of life.
Oparin and Haldane proposed that life originated from pre-existing non-organic molecules and the diverse organic molecules were formed from these inorganic constituents by chemical evolution
Differentiate between the genetic codes given below : (a) Unambiguous and Universal (b) Degenerate and Initiator
(a) List the two methodologies which were involved in human genome project. Mention how they were used.
(b) Expand ‘YAC’ and mention what was it used for.
(a) Explain the significance of palindromic nucleotide sequence in the formation of recombinant DNA.
(b) Write the use of restriction endonuclease in the above process.
Describe the roles of heat, primers and the bacterium Thermus aquaticus in the process of PCR.
Long Answer TypeWrite the different components of a lac-operon in E. coli. Explain its expression while in an ’open’ state.
Short Answer TypeAlthough a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
Switch
