A revision guide covering the core content of OCR Additional Science B (single award) specification from the Gateway Science suite. It maintains Lonsdale's approach to science revision whilst reflecting the ethos of the Gateway Science specification.Because all living organisms use the same basic genetic code (DNA), genes can be transferred from one organism to another in order ... The following method is used to produce insulin: The human gene for insulin production is identified. ... Another restriction enzyme is used to cut open a ring of bacterial DNA (a plasmid) .
|Title||:||The Essentials of GCSE OCR Additional Science for Specification B|
|Author||:||Jacquie Punter, Robert Johnson, Steve Langfield|
|Publisher||:||Letts and Lonsdale - 2006|