IGCSE Biology - 5d Cloning

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 5d Cloning


  • 5.17B describe the process of micropropagation (tissue culture) in which explants are grown in vitro
  • 5.18B understand how micropropagation can be used to produce commercial quantities of genetically identical plants with desirable characteristics
  • 5.19B describe the stages in the production of cloned mammals involving the introduction of a diploid nucleus from a mature cell into an enucleated egg cell, illustrated by Dolly the sheep
  • 5.20B understand how cloned transgenic animals can be used to produce human proteins


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.