Stem cells

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1
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what are stem cells ?

retain ability to divide repeatedly & differentiate into a range of cell types

2
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how to stem cells become specialised ?

because they only transcribe & translate parts of their DNA

3
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adult stem cells information ?

  • removed from body tissue

  • found in bone marrow

  • multipotent→cant differentiate into as many cell types

  • bone marrow transplants successful to replace faulty bone marrow

4
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embryonic stem cells info

  • taken from embryos

  • cells collected upto 4 days = totipotent

  • cells collected 4-7 days from inner mass = pluripotent

5
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what is one use of stem cells ?

used to treat paralysis caused by spinal cord injuries by replacing nerve tissue