Select the false statements -

I. An antibody is a protein molecule made by the lymphocytes.

II. An antibody binds to a specific foreign antigen and neutr zes its odd effects,

III. A type of acquired immune response is called cell-mediated immunity. This type of immunity is mediated by Tlymphocytes.

IV. Cancer is contagious and cells can spread from one person to another.

V. Cancerous cells fire highly differentiated cells.

VI. Cancer detection is based on biopsy and histopathological studies of the tissue and blood.

VII. Techniques like radiography, CT and MRI are very useful to detect cancers of the internal organs.

VIII. Diseases which are easily transmitted from one person to another, are called infectious diseases.

IX AIDS is non-infectious and cancer is infectious disease,

X Salmonella typhi is a pathogenic bacterium which causes typhoid fever in human beings.

XI. Sustained high fever (39° to 40°C), weakness, stomach pain, constipation, headache and loss of appetite are

some of the common symptoms of typhoid. .......

XII. Nicotine stimulates thyroid Gland.

XIII. Smoking increases CO 2 content in blood.

XIV. AIDS has no cure, prevention is the best option.

XV. HIV/AIDS infected people should be shunned by society .