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.
Gene-targeting efficiency is strongly increased in the lig4 mutant. The wild type and the lig4 (a) mutant were transformed with DNA fragments containing either 40- or 100-bp flanking sequences to target a deletion cassette to the ADE2 locus. The percentage of correct ADE2 deletion strains to the total number of transformants is shown.
