Natural cloning[ edit ] Cloning is a natural form of reproduction that has allowed life forms to spread for hundreds of millions of years. It is the reproduction method used by plantsfungiand bacteriaand is also the way that clonal colonies reproduce themselves. Molecular cloning Molecular cloning refers to the process of making multiple molecules. Cloning is commonly used to amplify DNA fragments containing whole genesbut it can also be used to amplify any DNA sequence such as promotersnon-coding sequences and randomly fragmented DNA.
The group said that the procedure would involve injecting cells from an infertile male into an egg, which would be inserted into the female's uterus.
This child would look the same as his or her father. Then there's the possibility of bringing deceased relatives back to life. Therapeutic cloning is the process by which a person's DNA is used to grow an embryonic clone. However, instead of inserting this embryo into a surrogate mother, its cells are used to grow stem cells.
These stem cells could become the basis for customized human repair kits. They can grow replacement organs, such as heartslivers and skin.
They can also be used to grow neurons to cure those who suffer from Alzheimer's, Parkinson's or Rett syndrome.
And since the stem cells would come from embryo clones using your own cell's DNA, your body would readily accept them. For more detailed information on stem cells, you can read How Stem Cells Work.
Here's how therapeutic cloning works: DNA is extracted from a sick person. The DNA is then inserted into an enucleated donor egg. The egg then divides like a typical fertilized egg and forms an embryo.
Stem cells are removed from the embryo. Any kind of tissue or organ can be grown from these stem cells to treat various ailments and diseases.
To clone human embryos, however, you need eggs. If therapeutic cloning were to begin in earnest, it could increase the demand for such eggs and potentially create additional moral questions regarding the donors [source: Speaking of ethics, there's plenty of related debate to go around when it comes to human cloning.
Cloning on Film Human reproductive cloning probably won't be a reality any time soon, but you can indulge your curiosity with a few cloning film selections. Set inwealthy people keep clones of themselves on an island so if they ever get hurt, they can just snag a body part from their clone by murdering him or her.
The Boys from Brazil:Cloning a gene usually involves copying the DNA sequence of that gene into a smaller, more easily manipulated piece of DNA, such as a plasmid.
This process makes it easier to study the function of the individual gene in the laboratory. Cloning also does not address the problems that put the species in danger in the first place, such as habitat destruction and hunting.
But cloning may be one . Cloning may invoke an image of an army of identical cows or sheep churned out factory-style, but in actuality, the process is much more laborious.
In order to consider and explore the ethical issues and possible applications of human cloning, in the UK Government asked the HFEA and the Human Genetics Advisory Commission (now called the Human Genetics Commission) to undertake research into these issues and present a .
Human cloning is the creation of a genetically identical copy of a human. The term is generally used to refer to artificial human cloning, which is the reproduction of human cells and tissues. It does not refer to the natural conception and delivery of identical twins.
The . Cloning and its Advantages Organ Replacement This form of cloning allows scientists to take a small amount of cells from an organ, and harvest an entirely new, functioning one.