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Tuesday, February 13, 2007Despite notorious difficulties in producing animals through cloning, nine of 19 mice who were born survived into adulthood. The scientists replaced the nucleus from an unfertilised egg with the nucleus from an adult skin stem cell. ....The cells were found in hair follicles lying underneath the skin and are involved in hair growth and in repairing skin wounds. ...Usually, just one to two per cent of such blastocysts survive to birth and many cloned mice are not healthy. In this study, the success rate was only 1.6% using skin cells from female mice and 5.4% using cells from male mice. The cells they used were keratinocytes, cells which are part of the epidermis. They are also the source of psoriasis, eczema, and some skin cancers. posted by Sydney on 2/13/2007 06:21:00 AM 0 comments 0 Comments: |
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