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Science News for September 4, 2005


Embryonic stem cells accrue genetic changes

Researchers found that most human embryonic stem cell lines exhibit gross genetic changes after a year to three years of growth in the lab. These changes can affect chromosome numbers, gene expression, and mitochondrial DNA sequences. The study highlights the need for close monitoring and further investigation into the effects of these...

SourceJohns Hopkins Medicine·JournalNature Genetics·DateSep 4, 2005