Small pox, caused by Variola virus, is an acute highly communicable disease which has been irradicated not only from India but from the whole world.

Correct Option: C

Small pox, caused by Variola virus, is an acute highly communicable disease which has been irradicated not only from India but from the whole world.

Interferons are virus induced proteins produced by cells infected with viruses. They are antiviral in action.

Correct Option: A

Interferons are virus induced proteins produced by cells infected with viruses. They are antiviral in action.

Antibodies bind to specific antigens to produce large insoluble complexes which render them harmless and facilitate their destruction by other cells of the immune system this process is called agglutination.

Correct Option: A

Antibodies bind to specific antigens to produce large insoluble complexes which render them harmless and facilitate their destruction by other cells of the immune system this process is called agglutination.

Robert Koch is associated with Koch’s postulates that help in determining whether a given micro-organism is pathogenic or not. Louis pasteur experimentally proved that all life originated from pre-existing life. Emil Von Behring was a German physiologist who received the 1901 Nobel Prize in physiology or medicine.

Correct Option: A

Robert Koch is associated with Koch’s postulates that help in determining whether a given micro-organism is pathogenic or not. Louis pasteur experimentally proved that all life originated from pre-existing life. Emil Von Behring was a German physiologist who received the 1901 Nobel Prize in physiology or medicine.

Bovine Spongiform Encephalopathy (BSE) is a total brain disease known to exist in beef and other dairy cattle in U.K. It is also known as mad cow disease. It is caused by prions. Creutzfeldt- Jacob Disease (CJD) is a slow degenerative disease among human affecting central nervous system with dysfunction and degeneration of the brain. It has been suggested that a few people in Britain might have contracted CJD by eating BSE- infected beef. So both are related. Encephalitis is an acute inflammation of the brain mostly due to viral infection.

Correct Option: B

Bovine Spongiform Encephalopathy (BSE) is a total brain disease known to exist in beef and other dairy cattle in U.K. It is also known as mad cow disease. It is caused by prions. Creutzfeldt- Jacob Disease (CJD) is a slow degenerative disease among human affecting central nervous system with dysfunction and degeneration of the brain. It has been suggested that a few people in Britain might have contracted CJD by eating BSE- infected beef. So both are related. Encephalitis is an acute inflammation of the brain mostly due to viral infection.