Questions

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

New kid on the block

In a water molecule, the ratio of mass of Hydrogen to the mass of Oxygen is always:

Each item consists of six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly on the Answer Sheet.

S1 :We do not know, after 60 years of equation, how to protect ourselves against epidemics like cholera and plague.

S6 :This is the disastrous result of the system under which we are educated.

P :If our doctors could have started learning medicine at an earlier age, they would not make such a poor show as they do.

Q : I have seen hundreds of homes. I cannot say that I have found any evidence in them of knowledge of hygiene.

R : I consider it a very serious blot on the state of our education that our doctors have not found it possible to eradicate these diseases.

S :I have the greatest doubt whether our graduates know what one should do in case on is bitten by a snake.

The correct sequence should be

In the following question, out of the four alternatives, select the word similar in meaning to the word given.
Pernicious

Contraction of heart is also known as

The Lachman test is used to evaluate stability of the

Which of the following is not a constituent of biogas?

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

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?