The Raven Thesis :: essays research papers

The first Human Cloned EmbryoArticle written by Jose B. Cibelli, Robert P. Lanza and Michael D West, with Carol Ezzell(summary)Parthenogenesis is a process of generating human embryos from nevertheless eggs put therapeutic cloning within reachOn October 13, 2001 the scientist of Advance Cell Technology come to see that their laboratory cells were dividing, the first human embryos were cloning.The scientists were hoping for the cells to divide into 100 or so cells called b lastocysts. They wanted to interest these blastocysts and have them grow to replace nerve, muscle and other tissues. But lonesome(prenominal) one of them came to the Six-cell stage and by then it stopped dividing. They had done a similar procedure they had eggs grow without sperm to fertilize, to develop parthenogenetically into blastocysts they theorise that using these to procedures together they could achieve human cloning.In 2001 scientist attempted to attain a cloned human embryo, they had consulted all the necessary sources before getting the ok to begin creating. Then they had to find a female subject to give eggs. To start the process of cloning they need to use a genuinely fine needle and get the genetic information from a farm egg. Then they inject it into the nucleus of a donor cell. The female donors were asked to progress to psychological and physical tests to screen for diseases and what not.Cloning was first attempted last July, because it depended on the menstrual cycles of the subjects, the subjects also had to take hormones so that they would ovulate 10 or so eggs at once.They seemed to have had a pass on of success when the nucleus of a fibroblast had appeared to divide but it never completed. It took 71 eggs from seven volunteers before they could create their first cloned embryo. Out of the 8 eggs with cumulus cells, two of them divided to form early embryos of quaternion cells and another went to at least six cells before it stopped growing.