GCK 4.5 Offers New Menu Action Items & Automated Routines to Increase Productivity Raleigh, NC - 2|16|2018 Textco BioSoftware, Inc. today announced the release of Gene Construction Kit® 4.5, an upgraded version of the award-winning DNA plasmid mapping and analysis software (GCK). For more than 30 years, GCK has been the cloning tool of choice for tens of [...]