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Biology
A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.
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Biology > Immunology 
agglutination
Biology; Immunology
The aggregation of particulate antigen by antibodies. Applies to red blood cells as well as to bacteria and inert particles covered with antigen.
allelic exclusion
Biology; Immunology
The ability of heterozygous lymphoid cells to produce only one allelic form of antigen-specific receptor (Ig or TCR) when they have the genetic endowment to produce both. Genes ...
allergen
Biology; Immunology
An antigen responsible for producing allergic reactions by inducing IgE synthesis.
allergic asthma
Biology; Immunology
is constriction of the bronchial tree due to an allergic reaction to inhaled antigen.
allergic rhinitis
Biology; Immunology
is an allergic reaction in the nasal mucosa, also known as hay fever, that causes runny nose, sneezing and tears.
allergy
Biology; Immunology
A term covering immune reactions to nonpathogenic antigens, which lead to inflammation and deleterious effects in the host.
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