这个词是什么意思？
The loss of one allele at a specific locus, caused by a deletion mutation; or loss of a chromosome from a chromosome pair, resulting in abnormal HEMIZYGOSITY. It is detected when heterozygous markers for a locus appear monomorphic because one of the ALLELES was deleted.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D019656 · MeSH 2026。
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