Question1) Answer all the questions:
i) Draw a labelled diagram of Prokaryotic cell.
ii) Distinguish Gram positive and Gram negative cell wall of bacteria.
iii) What is polymerase chain reaction and its application in recombinant DNA technology.
iv) What do you understand by the term ‘Gene’?
v) What is a viroid? .
Question2) Write a detailed note on structural organization of prokaryotic cells. Distinguish Prokaryotic cell from Emkaryotic cell.
Question3) Write note on:-
i) Replication of Viruses.
ii) Virus and Vaccine
Question4) Describe molecular structure of a gene and write a short note on gene concept.