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Q. Read the following statements.
I. Colostrum is recommended for the newborns because it is rich in antigens.
II. Chikungunya is caused by a Gram negative bacterium.
III. Tissue culture has proved useful in obtaining virus-free plants.
IV. Beer is manufactured by distillation of fermented grapes.
How many of the statement(s) is/are correct?

Microbes in Human Welfare

Solution:

Only one statement, i.e. statement III is correct. Rest statements are incorrect and can be corrected as
• Colostrum is the first breastmilk of mother, which contains antibodies (especially IgA). It provides immunity to infants against various pathogens.
• Chikungunya is caused by chikungunya virus.
• Beer is manufactured without distillation, by fermentation of barley malt by yeast.