Scientists tracked cloned mice for decades and found that tiny DNA errors build up over time, eventually causing cloning to ...

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A mouse cloning experiment that ran for two decades and spanned 58 generations of serial recloning has reached a dead end, ...

A Japanese research team pushed mouse cloning to its breaking point, producing 1,206 clones from a single donor line before the process collapsed at the 58th generation. The experiment, one of the ...

JEFFERSON CITY, Mo. -- Hundreds of opponents of embryonic stem-cell research crammed the Capitol halls Wednesday urging a statewide election on whether to overturn a voter-approved constitutional ...

A team of American researchers has created cloned monkey embryos using a variation of the technique used to clone Dolly the sheep, and extracted stem cells from the early-stage embryos. The work ...

If you will be using grow lights, make sure you set them on low to medium intensity. Avoiding direct sunlight is also recommended. At this stage of the cloning procedure, gentle fluorescent grow ...