This article is from the WSSF 2013 AFRMA Rat & Mouse Tales news-magazine.
Submitted by Mayumi Anderson, CA
Japanese scientists have created 581 copies of the
same mouse after 25 rounds of cloning. Using the
same techniques that created Dolly the sheep,
somatic cell nuclear transfer (SNCT)
which takes the nucleus from one cell and puts it into an
unfertilized egg that has its own genetic material removed.
The resulting embryo is an exact genetic copy of the donor
animal. To prevent epigenetic changes over successive
generations, a naturally occurring chemical called
trichostatin was added.
The 581 cloned mice showed no signs of premature aging, appeared mentally and physically perfect, were fertile, gave birth to healthy offspring, and lived a normal lifespan.