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20-Year Study Finds Mammal Cloning Hits Genetic Dead End After 58 Generations
Ground News • • science
Key Points:
- Japanese researchers at Yamanashi University conducted a 20-year study on cloning mice, revealing a biological limit to mammal cloning due to mutational collapse.
- The experiment involved serially cloning mice across generations, producing 1,200 individuals before the 58th generation failed to survive.
- Findings indicate that genetic errors accumulate with each cloning generation, ultimately causing the extinction of the cloned line.
- The study highlights that mammalian species can only remain viable through natural reproduction, as indefinite cloning is not sustainable.
- This research underscores the inherent biological constraints on cloning and challenges the possibility of infinite genetic replication in mammals.
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