| clonal | Pertaining to a clone. (05 Mar 2000) |
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| clonal aging | The deterioration in successive generations of a clone; thus paramecia and other simple forms, if allowed to reproduce asexually for a number of generations, invariably undergo deterioration, the characters of each group of descendants progressively departing from those of the original sexually produced ancestor. (05 Mar 2000) |
| clonal anergy | Functional inactivation of t- or B-lymphocytes rendering them incapable of eliciting an immune response to antigen. This occurs through different mechanisms in the two kinds of lymphocytes and can contribute to self tolerance. (12 Dec 1998) |
| clonal deletion | The removal of B-cell and T-cell varieties which recognise parts of the organisms body as targets of the immune system. This process naturally occurs early in the organisms development so that the organism will not be autoimmune (having an immune reaction against one's own body tissues) later in life. (09 Oct 1997) |
| clonal deletion theory | The elimination of certain T-cell populations in the thymus that have receptors for self-antigens. See: immunologic tolerance. (05 Mar 2000) |
| clonal expansion | Production of daughter cells all arising originally from a single cell. (05 Mar 2000) |
| clonal selection | <cell biology> The process whereby one or more clones, i.e. Cells expressing a particular gene sequence are selected by naturally occurring processes from a mixed population. Generally the clonal selection is for general expansion by mitosis, particularly with reference to B lymphocytes where selection with subsequent expansion of clones occurs as a result of antigenic stimulation only of those lymphocytes bearing the appropriate receptors. (18 Nov 1997) |
| clonal selection theory | A theory which states that each lymphocyte has membrane bound immunoglobulin receptors specific for a particular antigen and once the receptor is engaged, proliferation of the cell occurs such that a clone of antibody producing cells (plasma cell) is produced. (05 Mar 2000) |
Synonyms : Anergies, Clonal, Anergy, Clonal, Clonal Anergies
Synonyms : Abortion, Clonal, Abortions, Clonal, Clonal Abortions, Clonal Deletions, Deletion, Clonal, Deletions, Clonal
| clonal |
of or relating to a clone
Ãâó: wordnet.princeton.edu/perl/webwn
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| clonal selection |
The production of a population of plasma cells all producing the same antibody in response to the interaction between aB lymphocyte producing that specific antibody and the antigen bound by that antibody.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E06.htm
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| clonal restriction |
Restriction of all the progeny of a given ancestor cell to a spatially limited territory.
Ãâó: www.nature.com/nrn/journal/v2/n2/glossary/nrn0201_...
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| clonal |
originating from one cell.
Ãâó: www.oup.com/uk/booksites/content/0199264724/studen...
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| clonal selection |
The process of lymphocyte selection and activation in which antigen stimulates only those cells with specific receptors for the antigen.
Ãâó: www.sonoma.edu/users/t/thatcher/biol480/voc2.htm
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| clonal | of or relating to a clone |
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