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Definitions
Negative_selection
Negative_selection
Negative selection
Negative selection
may refer to:
In biology
:
Negative selection (natural selection)
, in natural selection it refers to the selective removal of rare alleles that are deleterious.
Negative selection (artificial selection)
, in artificial selection it refers to where negative, rather than positive, traits of a species are selected for.
In politics
:
Negative selection (politics)
, is a process that occurs in rigid hierarchies, most notably dictatorships.
In immunology
:
Negative selection (immunology)
T-cells that recognize self MHC molecules (and peptides) with high affinity are deleted from the repertoire of cells.
Central tolerance
is produced. Avoids auto-immunity. Occurs after positive selection.
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Last updated on Wednesday September 24, 2008 at 20:22:26 PDT (GMT -0700)
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