OCR F215 Module 2 - Biotechnology - Artificial Clones and Agriculture

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Artificial Vegetative Propagation:

Two methods:

  • Take Cuttings - section of stem is cut between leaf joints. This section is treated with hormones to encourage growth of roots. Cutting = clone.
  • Grafting - A shoot joined to an already growing root and stem (rootstock).

Tissue Culture: Separation of cells of any tissue type and then their growth in/on a nutrient medium.

  • TC generates large numbers of Genetically Identical plants which are disease free


1. Small piece of


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