TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: The method of identifying a cell with increased production of a desired product further comprises isolating a cell or cells with increased production of the desired product. The method further comprises repeating steps (b), (c) and (d) on the isolated cells or cells, or its descendants with increased production of the desired product, thus to identify a cell or cells with further increased production of the desired product, where the method further comprising isolating a cell or cells with further increased production of the desired product. The desired product is not encoded by the introduced nucleic acid molecule. The distinct nucleic acid molecule species comprises combinations of multiple first and multiple second regions. The expressed regulatory product is a polypeptide or an RNA molecule. The method further comprises isolating the nucleic acid molecule(s) introduced into the cell or cells with increased production of the desired product. The method of producing a cell with increased production of a desired product further comprises identifying the first and second regions of the nucleic acid molecule(s) introduced into the cell or cells with increased production of the desired product. Producing a cell with increased production of a desired product comprises providing a cell which produces a desired product; and introducing into the cell a nucleic acid molecule comprising a promoter region operably linked to a nucleic acid sequence that is capable of expressing a regulatory product under control of the promoter region, where the promoter region, and the nucleic acid sequence that is capable of expressing the regulatory product, have been identified according to the method above. The method of producing a desired product further comprises recovering the desired product from the cells or the cell culture. The method further comprising isolating, concentrating, purifying and/or formulating the desired product. The cell is a prokaryotic cell, where the prokaryotic cell is a cell listed in Table 1, given in the specification. The prokaryotic cell is a Bacillus or Escherichia or Synechocystis, preferably Bacillus subtilis or Escherichia coli. The regulatory polypeptide is a transcription factor or a sigma factor. The regulatory RNA molecule is a microRNA. The cell is a eukaryotic cell, where the eukaryotic cell is a fungal cell, an insect cell, a plant cell, an algal cell or a mammalian cell. The fungal cell is a yeast, where the fungal cell is Pichia pastoris or Saccharomyces cerevisiae or a fungal cell listed in Table 2, given in the specification. The plant cell is an Arabidopsis thaliana, Nicotiana tabacum, Zea mays, Glycine max, Brassica, Helianthus, Gossypium, Medicago, Triticum, Hordeum, Avena, Sorghum or Oryza cell. The mammalian cell is a human, mouse, rat, rabbit, bovine or dog cell, where the mammalian cell is a Chinese hamster ovary (CHO) cell. The regulatory polypeptide is a transcription factor, where the regulatory polypeptide is listed in Table 3, given in the specification, or is a homolog of a regulatory polypeptide listed in Table 3. The regulatory RNA molecule is a microRNA. In the methods above, the desired product is an industrial enzyme, a therapeutic protein, a membrane protein, a functional protein material, a fatty acid, an alcohol, a terpenoid, a bioplastic, a pigment, or an alkaloid drug. The desired product is a growth factor, cellulase, an amylase, a lipase, an antibody or an antibody fragment, an immunotoxin, a G protein-coupled receptor (GPCR), a spider silk, an adhesive protein, an alkane, an alkene, a Fatty Acid Methyl Ester (FAME), methanol, ethanol, isobutanol, a mevalonate-derived fuel, a mevalonate-derived drug, a polyhydroxybutyrate, a polyhydroxybutanoate, a lactam, or lycopene. The cell is from Pichia species or P. pastoris and the desired product is a human opioid receptor, insulin, an antibody fragment, a spider silk polypeptide or an immunotoxin therapeutic. The desired product is not GFP. The cell is P. pastoris, the desired product is silk protein, the first region comprises a promoter from a P. pastoris gene encoding lysine permease protein 8196606, and the second region comprises a nucleic acid sequence that encodes P. pastoris protein 8198201; or where the first region comprises a promoter from a P. pastoris gene encoding Catalase A (8198267), and the second region comprises a nucleic acid sequence that encodes P. pastoris Nitrogen catabolite Repressor open reading frame (ORF) (8198117). The cell is P. pastoris, the desired product is a single chain variable fragment (scFv) antibody, the first region comprises a promoter from a P. pastoris gene encoding protein 8197996, and the second region comprises a nucleic acid sequence that encodes P. pastoris protein 8200775; or where the first region comprises a promoter from a P. pastoris gene encoding Catalase A (8198267). The cell is P. pastoris, the desired product is insulin, the first region comprises a promoter from a P. pastoris gene encoding protein 8198945, and the second region comprises a nucleic acid sequence that encodes P. pastoris protein 8198341; or where the first region comprises a promoter from a P. pastoris gene encoding Catalase A (8198267). The method for increasing the production of a desired product further comprises isolating, concentrating, purifying and/or formulating the increased amount of the desired product. Preferred Collection of Cells: The distinct nucleic acid molecule species comprises combinations of multiple first and multiple second regions. The nucleic acid molecules are integrated into the genome of the cells that produce the desired product. The nucleic acid molecules are maintained extra-chromosomally in the cells that produce the desired product. The cells are P. pastoris cells. Preferred Kit of Parts: The desired product is not encoded by the nucleic acid molecule species. The nucleic acid molecule species are contained in expression vectors. The nucleic acid molecule species are contained in integration vectors that are capable of integration into the genome of the cells that produce the desired product. The nucleic acid molecule species are contained in episomal vectors that are capable of extra-chromosomal maintenance in the cells that produce the desired product. EXAMPLE - No suitable example given.