Question:

Read the following four statements (A - D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved usefiil in obtaining virus-free plants. (D) Beer is manufactured by distillation of fermented grape juice. How many of the above statements are wrong?

Updated On: Aug 3, 2024
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  • Three
  • Four
  • One.
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The Correct Option is B

Solution and Explanation

Chikungunya is caused by Chikungunya virus. Colostrum is the first breast milk of mother which contains antibodies (especially IgA) which protect the infant by the age of three months. Beer is manufactured by fermentation of barley malt by yeast species. Tissue culture can be used to obtain virus-free healthy plants from diseased plants. Although the plant is infected with virus, the meristem (apical and axillary) is free of virus. This is because cells of meristematic region are actively dividing cells and virus cannot keep pace with these cells. Consequently their number is much low in meristematic region and sometimes they are completely absent here. Hence, meristem can be removed and grown in vitro to obtain virus-free plants.
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Concepts Used:

Common Diseases in Human Beings

Any adverse variation from an organism's normal structural or functional condition is usually associated with specific signs and symptoms and distinct from physical injury.

  • Acute Disease

A few diseases appear out of nowhere and persist only a few days. Acute diseases, such as the common cold, are examples of them. Acute diseases frequently become chronic if they are not treated.

Acute diseases include strep throat, fractured bones, appendicitis, influenza, pneumonia, and others.

  • Symptoms and Treatments

Acute diseases develop quickly and are accompanied by unique symptoms that necessitate immediate or short-term treatment and improve once treated. Acute illnesses, such as the common cold, can sometimes go away on their own.

  • Chronic Diseases

Chronic diseases are illnesses that develop over time and endure for a long time or even a lifetime. Chronic disease is defined as a disease that lasts more than three years. The symptoms are relatively modest at first.