selection

in biotechnology
https://doi.org/10.1351/goldbook.S05548
A laboratory method applying a mixture of microorganisms to particular growth conditions under which only the cells with particular characteristics can survive and may be isolated.
Source:
PAC, 1992, 64, 143. 'Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)' on page 165 (https://doi.org/10.1351/pac199264010143)