Transformant: a bacterialplugin-autotooltip__default plugin-autotooltip_bigBacteria: Single-celled organisms that also utilize DNA and the standard genetic code as all organisms on earth, but unlike eukaryotes do not have intracellular membranes and membrane-bound organelles. In this book we use bacteria and prokaryote interchangeably. or yeastplugin-autotooltip__default plugin-autotooltip_bigYeast: in this book, refers to Saccharomyces cerevisiae, a single-celled eukaryotic microbe used as a model genetic organism. See Chapter 02 cell that has been transformedplugin-autotooltip__default plugin-autotooltip_bigTransformation: in microbiology (including for yeasts), transformation is the alteration of phenotype due to uptake of external DNA into a cell. Not to be confused with “transformation” in the context of cell biology, where the definition is the alteration of a normal cell to a cancerous cell. with a foreign piece of DNAplugin-autotooltip__default plugin-autotooltip_bigDNA: deoxyribonucleic acid. The genetic material for nearly all life on Earth..