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Dolly the Sheep Modern Antiques or Ethnography (~1800 AD or later) (sh.itjust.works)
submitted 5 months ago by to c/historyartifacts@piefed.social
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https://www.nms.ac.uk/discover-catalogue/the-story-of-dolly-the-sheep

Dolly the Sheep
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[–] 17 points 5 months ago (2 children)

Because they take an adult cell and trick it into making it act like an embryo. But it's not an embryo and has some traits of an adult cell still. So the clone grows weird and is in some ways as old as the adult.

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  • [–] 10 points 5 months ago

    To add to this one of the main reasons is telomeres, a piece of dna at the end of chromosomes that doesnt really code for anything but they protect rest of the chromosomes from damage. As cells age and divide they get shorter and if too short the actual important parts start to take damage. For some reason they only regenerate in a small set of cells such as embryonic stem cells.

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