t
in genetics, symbol for translocation.
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T antigen
tumor antigen.
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T banding
a staining technique with Giemsa stain used in the preparation of karyotypes; stains the telomeres (ends) and the centromeres.
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T cell
see T lymphocyte.
T c. receptor antigen specific heterodimeric proteins, either ?? or ??, present on the surface of T lymphocytes, the specificity of which is generated by somatic mutation and somatic recombination of a relatively small number of genes and is similar to that responsible for the generation of antibody diversity.
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T conformational state
deoxy (‘tense’) conformational form of hemoglobin.
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T effector cell
includes large granular lymphocyte, called also natural killer cell and cytotoxic T lymphocytes.
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T helper cell
see helper lymphocyte.
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T lymphocyte
see T lymphocyte.
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t statistic, t distribution
the statistical distribution of the ratio of the sample mean to its sample standard deviation for a normal random variable with zero mean. It is the basis of various t-tests used to make inferences about the mean of a normal variable.
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T tubule
see transverse tubules.
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