Medical Dictionary


adjective bi·al·le·lic \(ˈ)bī-ə-ˈlē-lik, -ˈle-\

Medical Definition of biallelic

  1. :  of, relating to, or affecting both alleles of a gene The risk of colorectal cancer among carriers of biallelic mutations appears to be close to 100% by 60 years of age …—William D. Foulkes, The New England Journal of Medicine, 13 Nov. 2008 This mode of oncogenesis differs from the inactivation of most tumor-suppressor genes, which are biallelic—that is, one allele is inactivated in the germ line, followed by mutation of the second allele at the somatic-cell level.—Roel Nusse, Science, 18 May 2007

Seen and Heard

What made you want to look up biallelic? Please tell us where you read or heard it (including the quote, if possible).


a trip made at another's expense

Get Word of the Day daily email!