compound heterozygosity
(KOM-pownd HEH-teh-roh-zy-GAH-sih-tee)
The presence of two different mutated alleles at a particular gene locus.
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.