"Maintenance of personal and public hygiene is necessary for prevention and control of many infectious diseases." Justify the statement giving suitable examples.

Certain pathogens are tissue /organ specific. Justify the statement with suitable examples.

It is said that diseases are spreading faster due to globalisation and increase movement of people. Justify the statement taking the example of H_3N_2 virus.

"Modern methods of breeding animals and plants can alleviate the global food shortage". Comment on the statement and give suitable examples.

It is said that diseases are spreading faster due to globalisation and increased movement of people . Justify the statement taking the example of H_5 N_1 virus.

Many secondary metabolites of plants have medicinal properties. It is their misuse that creates problem. Justify the statement with an example.

Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example? Also what term is used for such accidental findings?

The chemistry of the actinoid elements is not so smooth as that of the lanthanoids. Justify this statement by giving some examples from the oxidation state of these elements.

Sometimes due to biotic /abiotic factor the climax remain in a particular seral stage (pre climax) without reaching climax. Do you agree with this statement? If yes give a suitable example.

On the occasion of World Health Day, Dr. Satpal organized a ‘health camp’ for the poor farmers living in a nearby village. After check-up, he was shocked to see that most of the farmers suffered from cancer due to regular exposure to pesticides and many were diabetic. They distributed free medicines to them. Dr. Satpal immediately reported the matter to the National Human Rights Commission (NHRC). On the suggestions of NHRC. the government decided to provide medical care, financial assistance, setting up of super-speciality hospitals for treatment and prevention of the deadly disease in the affected villages all over India. Give an example of artificial sweetener that could have been recommended to diabetic patients.

A person is born with a hereditary disease. Suggest the possible corrective method for it. Illustrate by giving a specific example.