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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.

One of the two important manifestations of antigen-antibody immunity is lysis while the other is

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The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

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which of the following is smallest river in india ?

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During what stage of photosynthesis is O2 produced?

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Which year was declared as the National Mathematical Year as a tribute to Mathematician Srinivasa Ramanujan?

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India & which country recently launched initiative to combat Marine Pollution?

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Thirty white horses on a red hill, first they champ, then they stamp, then they stand still.

What are they?

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Project Human Resource Management - Processes

Describe the Inputs, Tools and Techniques , Outputs included in the Manage Project Team?

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