It is of no surprise the now the scientists can produce exactly like you in terms of biological and everything. When an identical twin is produced then it is said to be “cloning”.
In terms of biology cloning is “a plant or animal that is grown from one cell of its parent and that has exactly the same genes as its parent”.
The term Clone was derived from Greek word “twig”. Initially the spelling was only “Clon” later it was started to spell “Clone”.
In 1935 Mr. Hans Specmann , a German who discovered embryonic induction was awarded a Nobel Prize in terms of Phsiology or Medicine. It was him and his student Hlide Mangold who took the first somatic-stem nuclear transfer using amphibian embryos which was indeed first movement towards cloning.
The first mammal cloned was Dolly the sheep on July 5, 1996 at the Roslin Institute of Scotland but was officially announced on February 22, 1997. The experiment was successful only after 434 attempts of embryo. The Dolly (5 July 1996 – 14 February 2003) was a female sheep.
After the successful experiment, cloning has been done of different animals like dog, cat, deer etc which can be found in this link http://en.wikipedia.org/wiki/List_of_animals_that_have_been_cloned for the list of animals cloned.
Now the question is can the humans be cloned? Yes indeed but the government has not approved for the human cloning and termed it as illegal. But human was cloned. Cloning was done under the auspices of the Advanced Cell Technology private company with the assistance of scientists James Robl and Jose Cibelli. They took the cell fo Cibelli’s leg and cheek and put inside the ovum of cow. The experiment was success but they finally destroyed at 32-cell stage.
In US cloned animals are available for the meat which has been arising issues regarding the health of the consumers.
See the videos for how cloning is done