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Q. What are the antigen-presenting cells of the immune system?
The antigen-presenting cells of the immune system also known as APC cells are cells that do digestion and phagocytosis of foreign (to the body) microorganisms and later expose antigens derived from these microorganisms in the outer side of their plasma membrane. These processed antigens are then recognized by lymphocytes that activate the immune response. Several kinds of cells, like the macrophages, can act as antigen-presenting cells.
In the previous section we discussed the concept of species in detail and concluded that the concept of biological species and Mayr's definition of species have a wide acceptance a
What is Protein Synthesis? Protein Synthesis : Protein synthesis begins in the nucleus, with the formation of mRNA from a DNA template through transcription. The function of
Define Nutritional Needs of the Elderly? In this, we learnt about the nutritional needs of the elderly, and in doing so we have also focused on many other aspects such as who d
Two important human fossils that throw much light on the human ancestory were discovered in .Olduvai beds in Africa and in central Java respectively. Although the development of bi
OPIUM - Opium is milky latex obtained by incising the unripe capsule of white poppy ( Papave r somniferum family paprarecea) It has eaten or smoke. Generally it
Protozoans are microscopic in size however some are large enough to be seen with naked eye. Microscopic organisms such as these have numerous advantages, one of which is that they
Explain the Frank Furcal Perforation a) Coronal perforation at the pulpal floor of multirooted tooth. b) Due to excessive deepening at the pulpal floor during access perfora
list of the structures you would expect to find in the dermis.
Q. Do the phosphate and the pentose groups give heterogeneity or homogeneity to the nucleic acid chains? What about the nitrogen- containing groups? Supported by that, which of tho
ORGANIZATION CHART: Organization chart is one of the visual which helps any visitor to get an understanding of an organization at a glance. Meaning of Organization Chart
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