How can an organism immunized against future infections
How can an organism which once underwent contact with an antigen be immunized against the future infections by similar agent?
Expert
This phenomenon is termed as immune memory. Whenever an antigen makes contact for the initial time with cells of humoral immune system, B lymphocytes which are producers of particular immunoglobulins against that antigen multiply and in days manufacture their antibodies. This is termed as primary response. Some of such specific B lymphocytes remain in the circulation for a big time, sometimes throughout the whole life of the individual, and they become the memory cells of immune system. Whenever the body is exposed in the future to similar antigen the production of antibodies will be quicker and more intense as the immune system is already made to react against that antigen. This is termed as the secondary response.
Name the cellular structure to which mRNA molecules join to begin the protein synthesis?
Why do plants require exchanging the gases with the environment?
What is spinal cord? Which elements constitute the spinal cord?
Write down the main particular constituents of cell walls in bacteria, protists, fungi and in plants?
What are the different problems created due to urbanization also define Zero population growth?
Define the term order of reaction?
Explain, how the male gametes go through the egg cell? How the female gametes guard itself from entry of more gametes after the first sperm cell?
What is the summary of the research papaer journal attempts to find an optimal solution for the problem of a multi-skill call center ?
Behavioral theory of the leadership The initiating structure, which refers to leader Employee centered : in the employee central oriented , the leader developi
Name the events which mark the starting and end of the first interphase period? What happens in the cell in this period?
18,76,764
1940618 Asked
3,689
Active Tutors
1452499
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!