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Glossary Term
Glossary Term Haploinsufficient
Definition A description applied to a gene that produces a mutant phenotype when present in a diploid individual heterozygous for an amorphic allele.

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
MGI 6.22
The Jackson Laboratory