these hybrids were constantly maintained in hat selective media in order to select for the presence of the human thymidine kinase gene on the intact chromosome 17 ( 17q21-q22 ) or the 17/19 ( 17pter -- -- 17q23 : :19p13.3 -- -- 19pter ) translocation chromosome .
C1520769
17q21-q22
C0008633
chromosome