Ozone Depleting Chemicals CFCs The destruction of ozone is accelerated by certain trace gases containing nitrogen, hydrogen, bromine, and chlorine. These are referred to as ozone depletion chemicals.
YAC (which stands for Yet Another Cleaner) is a company developing not only registry cleaners but all sorts of system utilities and security tools. And one of their best creations is the YAC Virus Removal Tool (which removes viruses, that must be clear).
home / medterms medical dictionary a-z list / yeast artificial chromosome (yac) definition Medical Definition of Yeast artificial chromosome (YAC) Yeast artificial chromosome (YAC): A vector (carrier) created and used in the laboratory to clone pieces of DNA. A YAC is constructed from the telomeric, centromeric, and replication origin sequences needed for replication in yeast cells. (The telomere is the end of the chromosome; the centromere is the chromosome region to which spindle fibers attach during cell division; and the replication origin sequences are the spots where the replication of DNA starts.)