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CBSE Notes 2011-2012 » XII-Biology

Human Health and Disease

When is a tumour referred to as malignant ?

Short answer question

When is a tumour referred to as malignant ?

What are interferons ? [Foreign 2004; Delhi 99, 98C]

Short answer question

What are interferons ? [Foreign 2004; Delhi 99, 98C]

Which category of adaptive immunity is provided by vaccination ? [Delhi 2004C]

Short answer question

Which category of adaptive immunity is provided by vaccination ? [Delhi 2004C]

It was diagnosed by a specialist that the immune system of the body of a patient has been suppressed...

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It was diagnosed by a specialist that the immune system of the body of a patient has been suppressed. Name the disease the patient is suffering from and its causative agent.. [Delhi 2007]

Name the two major groups of cells required in attaining specific immunity. [Delhi 2005]

Short answer question

Name the two major groups of cells required in attaining specific immunity. [Delhi 2005]

What happens in lymphoid organs with respect to immunity ? [AI 2005]

Short answer question

What happens in lymphoid organs with respect to immunity ? [AI 2005]

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