Questions

Which of the following tennis player recently won his 99th career title in his hometown?

Which characteristic is a property of molecular substances?

Short term side effects of alcohol and other drugs include

Which city was the venue of 'ParmanuTech 2019'?

The continents of Africa and Europe, at their closest point are seperated from each other by the strait of 

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 happens when an antigen comes in contact with lymphocytes?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

A factory, where workers are employed at very low wages for long hours and under poor conditions.

India's only Naval Aviation Museum is located in which state?