to examine the roles of the cytoplasms of differentiated somatic cells on nuclear gene expression , reconstituted cells ( rc-cells ) were isolated clonally by fusing karyoplasts ( isolated nuclei ) from neomycin-resistant mouse teratocarcinoma pcc4-neor cells with cytoplasts ( isolated cytoplasms ) of chloramphenicol ( cap ) -resistant rat myoblasts l6tg.capr cells , and after double selection in the medium containing 400 micrograms/ml of neomycin and 100 micrograms/ml of cap ( g418 plus cap medium ) .
C0007610
nuclei
C0007634
cells