Biallelic RB1 Gene Mutation

**Semantic type:** Cell or Molecular Dysfunction

**Definition:** The presence of mutations in both alleles of the RB1 gene.

**Synonyms:** - Biallelic RB Gene Mutation - Biallelic RB1 Mutation - Biallelic Retinoblastoma 1 Gene Mutation - Biallelic Retinoblastoma Gene Mutation - RB Biallelic Mutation - RB1 Biallelic Gene Mutation - RB1 Biallelic Mutation - RB1 Gene Biallelic Mutation