| 释义 |
sickle cell trait
sickle cell traitn. A hereditary condition, usually harmless and without symptoms, in which an individual carries only one mutated hemoglobin gene for sickle cell anemia. The sickle cell trait confers resistance to some forms of fatal malaria.sick′le cell` trait`
n. the usu. asymptomatic hereditary condition that occurs when a person inherits from only one parent the abnormal hemoglobin gene characteristic of sickle cell anemia. [1925–30] sickle cell trait
trait [trāt] 1. any genetically determined condition; also, the condition prevailing in the heterozygous state of a recessive disorder, as the sickle cell trait.2. a distinctive behavior pattern.sickle cell trait the condition, usually asymptomatic, of being heterozygous for hemoglobin S; see also sickle cell.sick·le cell traitthe heterozygous state of the gene for hemoglobin S in sickle cell anemia.sickle cell traitn. A hereditary condition, usually harmless and without symptoms, in which an individual carries only one mutated hemoglobin gene for sickle cell anemia. The sickle cell trait confers resistance to some forms of fatal malaria.sickle cell trait Heterozygosity for HbS seen in 8% of US blacks, up to 30% of African populations Clinical No anemia, normal growth, development, lifespan, slight ↑ in sudden unexplained death; hematuria, splenic infarction. See Sickle cell disease. ThesaurusSeetrait |