Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Retention and loss of heterozygosity (LOH). (A) Example of a sample showing retention of heterozygosity; the normal and tumour DNA profiles are identical. (B) Example of a sample displaying LOH; an arrow indicates a reduction in one of the tumour alleles when compared with the matched constitutional DNA.
