44 results found

Search Results for: complement

Complement fixation test

Definition noun (immunology) A form of immunological test for the detection of the presence of either a particular antibody... Read More

Complement

Complement (Science: immunology) a term originally used to refer to the heat labile factor in serum that causes immune... Read More

Membrane attack complex

membrane attack complex --> complement (Science: immunology) A term originally used to refer to the heat labile factor in... Read More

Antigen

Antigen Definition What is an antigen? A simple definition is that an antigen refers to any substance that triggers an... Read More

Transcription (biology)

In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand... Read More

Chromosomes X and Y and Sex Determination

Reviewed by: Mary Anne Clark, Ph.D. In humans, the normal chromosome complement is 46, consisting of 22 pairs of... Read More

Karyotype

Definition noun, plural: karyotypes (genetics) The characterization of the chromosome complement of a species (such as the... Read More

Orchestra

orchestra 1. The space in a theater between the stage and the audience; originally appropriated by the greeks to the chorus... Read More

Monosomy

Definition noun (genetics) A type of aneuploidy characterized by the loss of a single chromosome of the normal... Read More

Hemolysin

Definition noun, plural: hemolysins An agent or substance that causes hemolysis, i.e. the lysis of red blood cells resulting... Read More

Immune cytolysis

Definition noun (1) Cell lysis caused by a lesion produced by the complement proteins on the antibody-coated cell membrane... Read More

Precursor mRNA

Definition noun plural: precursor mRNAs An immature or incompletely processed mRNA molecule in eukaryotes that needs to be... Read More

Hemolysis

Definition noun The lysis or the breaking open of red blood cell (erythrocyte) causing the release of hemoglobin into the... Read More

Autoimmunity

Definition noun, plural: autoimmunities A type of immunity wherein the immune response is directed against own body,... Read More

Distance

Distance 1. The space between two objects; the length of a line, especially the shortest line joining two points or things... Read More

Mature mRNA

Definition noun plural: mature mRNAs The completely processed mRNA molecule in the cell of eukaryotes Details Overview... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Autoimmune disease

Definition noun, plural: autoimmune diseases A type of disease as a result of an immune response of the body against own... Read More

Proteome

Definition noun, plural: proteomes The complete set of proteins in an organism over its entire life cycle, or at a given... Read More

Triple-X syndrome

Definition noun A genetic condition in which a female has an extra X chromosome Supplement In humans, the sex chromosomes... Read More

Bacteriolysin

Definition noun, plural: bacteriolysins (1) A specific antibody that combines with bacterial cells (antigens) and, in the... Read More

Independent Assortment and Crossing Over

Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial investigates the process of meiosis, where... Read More

Micrococcus luteus

Definition noun A gram-positive aerobic harmless bacterium involved in the conversion of nitrate to... Read More

Immunoglobulin

Definition noun, plural: immunoglobulins (1) Any of several classes of structurally related glycoproteins in the blood... Read More

Antigen-antibody complex

Antigen-antibody complex The complex formed by the binding of antigen and antibody molecules. The deposition of large... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Pair

Pair 1. To be joined in paris; to couple; to mate, as for breeding. 2. To suit; to fit, as a counterpart. My heart was made... Read More

Naked

naked 1. Having no clothes on; uncovered; nude; bare; as, a naked body; a naked limb; a naked sword. 2. Having no means of... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Receptor

receptor 1. A molecular structure within a cell or on the surface characterised by selective binding of a specific substance... Read More

Fixation

Definition noun, plural: fixations (biological technique) The use of a fixative to preserve histological, cytological, or... Read More

Xxy syndrome

XXY syndrome --> klinefelter's syndrome (Science: syndrome) A condition characterised by small testes with hyalinization... Read More

Immune response

Immune Response Definition An immune response is defined as the reaction of the body in response to the presence of a... Read More

Cofactor

Definition noun, plural: cofactors (biochemistry) An inorganic complement of an enzyme reaction Supplement Cofactors... Read More

Opsonization

Definition noun, plural: opsonizations The process at which opsonins bind to the surface of the antigen so that the... Read More

Reactants

reactant A substance taking part in a chemical reaction. acute phase reactants, A group of proteins that are produced and/or... Read More

Logarithm

Logarithm (Science: mathematics) One of a class of auxiliary numbers, devised by john napier, of Merchiston, Scotland... Read More

Haemolysis

Definition noun The lysis or the breaking open of red blood cell (erythrocyte) causing the release of hemoglobin into the... Read More

Humoral immunity

Humoral immunity (Science: immunology) a form of immunity whereby b lymphocytes and plasma cells produce antibodies to... Read More

Immune system

Definition noun The organ system that is involved in protecting the organism from infection, infestation, and other... Read More