15.1 Totipotency and Cell Specialisation 0.0 / 5 ? BiologyHuman, animal and plant physiologyA2/A-levelAQA Created by: MollyCreated on: 14-04-14 13:22 What is the term that describes cells that have different functions? Differentiated cells. 1 of 9 How are the proteins that a cell produces coded for?B By certain genes being 'switched on'. 2 of 9 What are totipotent cells? Cells that can differentiate and become specialised for any particular function. 3 of 9 What cells are an example of totipotent cells? Embryonic cells. 4 of 9 What are the 2 ways in which genes are prevented from expressing themselves? 1- Preventing transcription and hence preventing the production of mRNA. 2- Breaking down mRNA before its genetic code is translated. 5 of 9 What happens if a cell loses its nuclei once it has matured? It loses its totipotency. 6 of 9 What are totipotent cells that exist in mature animals called? Stem cells. 7 of 9 Where are stem cells found in mature animals? the inner lining of the small intestine, in the skin, and in the bone marrow. 8 of 9 What is growing a cell outside of a living organism called? in-vitro development. 9 of 9
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