chimeric

1:  relating to, derived from, or being a genetic chimera :  containing tissue with two or more genetically distinct populations of cells chimeric mice

2:  composed of material (such as DNA or polypeptide) from more than one organism a chimeric gene … scientists have created so-called chimeric antibodies, using genetic engineering to fuse variable regions derived from mouse antibodies with a constant region derived from human antibodies.—Lawrence M. Fisher, The New York Times, 5 Mar. 1991