If human reproductive cloning proceeds, the primary method scientists will likely use is somatic cell nuclear transfer (SCNT), which is the same procedure that was used to create Dolly the sheep. Somatic cell nuclear transfer begins when doctors take the egg from a female donor and remove its nucleus, creating an enucleated egg .
Human Cloning. Human reproductive cloning - producing a genetic copy of an existing person using somatic cell nuclear transfer - has never been done. Many scientists believe that it can never be safe. In opinion polls , , overwhelming majorities consistently reject its use.
To make a clone, scientists transfer the DNA from an animal's somatic cell into an egg cell that has had its nucleus and DNA removed. The egg develops into an embryo that contains the same genes as the cell donor. Then the embryo is implanted into an adult female's uterus to grow.
How Human Cloning Will Work NEXT PAGE By: Kevin Bonsor & Cristen Conger Hello, Dolly! After Dolly was cloned in 1997, people worried that humans would be next. See more cloning pictures. Time & Life Pictures/Getty Images On July 5, 1996, the most famous sheep in modern history was born.
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Yes. There's two specific skills that infertility doctors have that are necessary for cloning. One is micro-manipulation of embryos. In this case, to take a human egg, to remove the nucleus, and
DNA cloning is the process of making multiple, identical copies of a particular piece of DNA. In a typical DNA cloning procedure, the gene or other DNA fragment of interest (perhaps a gene for a medically important human protein) is first inserted into a circular piece of DNA called a plasmid.
Dom Burgess investigates whether we could clone humans in the future and the current state of artificial and reproductive cloning processes.
Human reproductive cloning is unethical, but the production of cells from cloned embryos could offer many potential benefits. So, can human cloning be made safe? Nature Reviews Genetics - Human
