FIG 2.
Distribution of mutation frequencies among the five target genes. The relative number of genes encoding early STOP codons and out-of-frame insertions and deletions is shown in gray.
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.