Clones of Dolly the sheep show no signs of accelerated ageing
Do clones age prematurely? When Dolly the sheep had to be put down at the age of six years, half of the expected lifespan for a domestic sheep, many scientists were left wondering if cloning adult animals could result in accelerated ageing.
Twenty years after the death of Dolly, research from the University of Nottingham on a small flock of Dolly clones has given the most comprehensive answer to the question of cloning and senescence. Tests on the sheep have revealed no signs of premature ageing in relation to non-cloned cousins. In this video from the University of Nottingham, study leader Kevin Sinclair explains the nature of the study conducted with clones Debbie, Denise, Dianna and Daisy, and considers the use of cloning in future scientific studies.
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