Not every cell in the body is alike. Genes may be switched ‘on’ or ‘off’ in different cells so that a muscle cell for instance is different from an epidermal cell. This kit examines the mechanism by which a particular gene in the bacterium Escherichia coli, coding for the enzyme b-galactosidase, is turned ‘on’ in the presence of lactose. This is the gene studied in the 1950’s and 60’s by Jaques Monod and François Jacob and led to the generally accepted Jacob-Monod model of gene regulation. An ideal introduction to this complex subject at ‘A’ level. Contains enough material for twenty students.
Direct Delivery - up to 5 weeks. E8A02847
88 £120.46 Free expert technician to technician support available
B. Chromosome Staining Kit
This kit is designed to complement the book Investigating Chromosomes by Dr. A. F. Dyer of the Department of Botany, University of Edinburgh, by providing the necessary basic chemicals and equipment for ten students (or ten pairs of students) to make their own preparations from living organisms. The technique described is straightforward and has been evolved by Dr. Dyer to provide good results ‘first-time’. Although onion seeds are provided with the kit, students will benefit from investigating other material.