Questions

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The antigen-antibody immunological reaction is used to be regarded as typical of immunological responses. Antibodies are proteins synthesized by specialized cells called plasma cells, which are formed by lymphocytes (cells from the lymph system) when an antigen, a substance foreign to an organism's body, comes in contact with lymphocytes. Two important manifestations of antigen-antibody immunity are lysis, the rapid physical rupture of antigenic cells and the liberation of their contents into the surrounding medium, and phagocytosis, a process in which antigenic particles are engulfed by and very often digested by macrophages and polymorphs. The process of lysis is executed by a complex and unstable blood constituent known as complement, which will not work unless it is activated by a specific antibody; the process of phagocytosis is greatly facilitated when the particles to be engulfed are coated by a specific antibody directed against them.

What are antibodies?

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

Be a dab hand at something

The foreign traveller who visited India during the reign of Shahjahan was______________

Which of the following was not actively engaged in social and religious reforms in India ?

The Red fort in Delhi was the residence of emperors of which dynasty in the 16th century?

Which event best illustrates the war on terrorism?

If x + (1/x) = √13, then what is the value of x5 – (1/x5)?

In each of the following questions, four words have been given out of which three are alike in some manner, while the fourth one is different. Choose the word which is different from the rest.