Immunization against antigen
How organism which had once undergone contact with an antigen can be immunized against the future infections by the same agent?
Expert
This mechanism is known as immune memory. Whenever an antigen forms contact for first time with the cells of humoral immune system, B lymphocytes which are producers of the specific immunoglobulins against that antigen multiply and in days synthesize their antibodies. This is termed as primary response. Some of these specific B lymphocytes stay in the circulation for long time, sometimes during the entire life of the individual, and they become memory cells of the immune system. Whenever the body is exposed in future to the same antigen production of the antibodies will be faster and more intense as the immune system is already prepared to react against that antigen. This is known as the secondary response.
1. Created a setting for sharing knowledge: access to knowledge breeds more knowledge and the best KM techniques ensure that everyone's involved. Try an open meeting policy. 2. Eliminate communication "filters: politics, turf, and implementation responsi
State the formula of the DPD for withered (or shrunken) plant cells? How is that condition possible?
Competitive advantage - Porter's five forces Another useful assessment of the current situation uses a model, again developed by Michael Porter called Porter's five forces. The model looks at the market forces that each product has
Assume you came across the given headline in a story of a daily newspaper: "Automobile prices are so high right now that there have to be a shortage. As a result not everyone who needs an automobile will be capable to buy one." Is this statement correct?
What is the position of thyroid gland in the body?
Which events mark the beginning and end of third interphase period? What take place in the cell during this period?
Give an explanation for bleeding which accompanies menses?
Explain the term first polar body? Differentiate between first polar body and oocyte II?
State the structures which form the part of nervous system?
What is excitation threshold of the neuron? How does this threshold relate to “all-or-nothing” rule of neural transmission?
18,76,764
1953553 Asked
3,689
Active Tutors
1447920
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!