trait

trait (trāt)

1. any genetically determined characteristic; also, the condition prevailing in the heterozygous state of a recessive disorder, as the sickle cell trait.

2. a distinctive behavior pattern.

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sickle cell trait  the condition, usually asymptomatic, due to heterozygosity for hemoglobin S.

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trait (trt)

n.

1. A genetically determined structure, attribute, or function.

2. A distinct pattern of behavior.

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Trait

A distinguishing feature of an individual.

Mentioned in: Birth Defects

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trait

Etymology: Fr, trace

1 a characteristic mode of behavior or any mannerism or physical feature that distinguishes one individual or culture from another.

2 any characteristic quality or condition that is genetically determined and inherited as part of a specific phenotype. A trait is inherited as homozygous dominant, homozygous recessive, or heterozygous in the ratio of 1:2:1 among offspring of two heterozygous parents. In medicine the term trait is used specifically to denote the heterozygous state of a recessive disorder, such as the sickle cell amemia. See also dominance, gene, Mendel's laws, recessive allele.

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trait,

n a personal quality or distinct attribute of a human being, be it physical, mental, or genetic. See also constitution, diathesis, disposition, miasm, predisposition, susceptibility, and terrain.

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trait (trāt),

n an inherited set of mental or bodily characteristics.

trait, Cooley's,

n.pr See thalassemia minor.

trait, sickle cell,

n a form of sickle cell disease in which patients are asymptomatic but their erythrocytes can be caused to assume a sickle shape under certain conditions. The trait is present when one parent has the gene (heterozygous condition) for sickle cell disease. See also disease, sickle cell.

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trait

1. any genetically determined condition; also, the condition prevailing in the heterozygous state of a recessive disorder.

2. a distinctive behavior pattern.

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trait A-46

see inherited parakeratosis.

qualitative trait

a characteristic that is expressed only in descriptive terms, e.g. fine bone, deep chest.

quantitative trait

a characteristic that is expressed mathematically, e.g. an annual yield of milk of 15,000 lb.

sex-linked trait

the gene for the trait is located on the chromosomes which determine the sex of the individual.

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trait

Genetics An attribute or characteristic of an individual in a species for which heritable differences can be defined. See Bipolar trait, Complex trait, Heritability, High-sensation seeking trait, Input trait, Output trait, Sickle cell trait, Species.