[Expression of cloned genes in pro- and eukaryotic cells]

Expression of cloned genes in new environment is reviewed. Gene expression is possible under control of their own regulatory elements in the cells of related organisms. Genes may also function in cells of taxonomically remote organisms; for example, the genes of lower eukaryotes are active in bacterial cells, the Drosophila gene -- in yeast cells. The main principles of construction of pro- and eukaryotic vectore capable to provide the expression of DNA sequences in corresponding recipient cells are discussed.