Sunday, April 27, 2014

Adult Human Cells Cloned for First Time


It has finally happened we can clone human cellsEver since Dolly the Sheep was cloned in 1996, scientists have been trying to do the same thing with human cells. The researchers replaced the original DNA in an unfertilized egg with the donor DNA, and then cultured the cells in a lab dish. The stem cells, which were an exact match to the donor's DNA, can then be turned into various tissue types. These tissue cells can be used for Alzheimer's, cancer, and could even be used for dead cells. The technique works by removing the nucleus from an unfertilized egg and replacing it with the nucleus of a skin cell. An electric shock causes the cells to begin dividing until they form a blastocyst,this is when the inner cell mass, which subsequently forms like an embryo. Another technique is using the    blastocyst which is then implanted into a womb, but with this technique the cells would be harvested to be used to create other organs or tissues not a full grown clone. This technique is very close to being able to clone humans but not just yet. I believe cloning people will only be a few more years. But this study does lead to helping against cancer and it also makes new organs and tissue for those who need it. 

1 comment:

  1. Dolly the sheep and most other cloned animals had/have a lot of health issues. Hopefully using cloned human cells for medical treatments won't cause unforeseen long term health problems for the patients.

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