Biology

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

blocking antibody

Biology; Immunology

A functional term for an antibody molecule capable of blocking the interaction of antigen with other antibodies or with cells.

bone marrow

Biology; Immunology

The site of hematopoiesis, in which stem cells give rise to the cellular elements of blood, including red blood cells, monocytes, polymorphonuclear leukocytes, platelets, and ...

bone marrow transplantation

Biology; Immunology

A procedure used to treat both nonneoplastic and neoplastic conditions not amenable to other forms of therapy. It has been especially used in cases of aplastic anemia, acute ...

bronchus-associated lymphoid tissue (BALT)

Biology; Immunology

Secondary lymphoid organs connected to the bronchial tree.

bursa of Fabricius

Biology; Immunology

Site of development of B cells in birds; an outpouching of the cloaca.

CH50 unit

Biology; Immunology

The amount of complement (serum dilution) that induces lysis of 50% of erythrocytes coated with specific antibody.

C1 deficiencies

Biology; Immunology

Patients with these defects may manifest systemic lupus erythematosus, glomerulonephritis or pyogenic infections as well as an increased incidence of type III (immune complex) ...