allelic heterogeneity
(uh-LEE-lik HEH-teh-roh-jeh-NEE-ih-tee)
The presence of different variants at a single gene locus that cause the same or similar phenotypic expressions of a disease or condition.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.