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Q.

What is the concept followed in CLONING?

Tags: relationships, education, science
Asked by hitler, 18 Nov '09 07:26 pm
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Answers (6)

1.

There are various ways to "Clone" living organisms.

First, the donor cells are grown under special conditions in culture. In this way the number of cells can be increased by several orders of magnitude. It is also possible to make genetic modifications and to select just those cells in which the desired modification has occurred. The selected cells are then fused with an unfertilized egg from which the introduced nucleus can lead to the formation of an embryo. The embryos are then transplanted into female sheep and the lambs are born naturally.

Separating an Embryo

The simplest way to make clones is making twins, which have the exact same DNA. This can be achieved by separating the embryo and duplicating one into two. Using this technique one can make perfectly identical twins. Embryo splitting or blastomere separation is what is most commonly referred to as human cloning. Embryos in the early stages of development start to divide into cells called blastomeres. The zona pell ...more
Answered by anantharaman, 18 Nov '09 07:39 pm

 
  
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2.

Cloning is the process used to create copies of DNA fragments cells (cell cloning) or organisms
Answered by Good Citizen, 18 Nov '09 08:52 pm

 
  
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3.

Cloning is the production of multiple, identical offspring. A clone is an animal who is genetically identical to its donor "parent". We now know that this can be achieved using cells derived from a microscopic embryo, a fetus, or from an adult animal. Cloning from adult animals was introduced to the public in 1997 when scientists announced the birth of Dolly, the first animal cloned in this way. There have now been hundreds of clones produced from skin cells taken from adult sheep, cattle, goats, pigs and mice. The real key to cloning an adult animal is the ability to reprogram the skin cell nucleus and cause it to begin developing as if it was a newly fertilized egg.
Nuclear transfer involves transferring the nucleus from a diploid cell ( containing 30-40,000 genes and a full set of paired chromosomes) to an unfertilised egg cell from which the maternal nucleus has been removed. The technique involves several steps (see diagram below). The nucleus itself can be transferred or the int ...more
Answered by Sindhu menon, 20 Nov '09 01:09 am

 
  
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4.

The simple term cloning means that producing a duplicate copy of an animal i.e. cow, dog, bu fellow or sheep. In the modern world scientists now are trying to do human cloning. means producing a second person just like an orginal person. You may also call it as a Xerox copy. In my opinion, it is not a new invention, I think so. Because in Mahabharta there were 101Kaurows. When I consider this point, minutely, is it possible for a lady or women to produce 101 children? In Medical terms, it is not possible. So, I think that in ancient times,there were clonings of human being also
Answered by Murarji Pachpol, 20 Nov '09 12:55 am

 
  
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5.

The most common cloning method, known as "somatic cell nuclear transfer" or simply "nuclear transfer," requires two kinds of cell. One is a somatic cell, which is collected from the animal that is to be cloned (known as the "genetic donor"). A somatic cell is any cell other than a sperm cell or egg cell, and contains the complete DNA, or genetic blueprint, of the animal it came from. For cloning purposes, somatic cells are typically obtained by a routine skin biopsy performed by a veterinarian.

The other kind of cell required for cloning is an egg cell, which is collected from a female of the same species (known as the "egg donor"). In the lab, a scientist extracts and discards the nucleus of the egg cell, which is the part of the cell that contains the egg donor's genes. The scientist then inserts the somatic cell from the genetic donor into the egg and "fuses" the two with electricity. The resulting fused egg contains the genetic donor's DNA.

The scientist stimulates the f ...more
Answered by saranathan Narasimhan, 19 Nov '09 03:22 pm

 
  
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6.

Perhaps the first result of cloning was the Kaurava - 101 but only difference is that they all differed in their appearance i.e. shape and face cut.
Answered by UNNIKRISHNA RAMAN, 19 Nov '09 01:33 pm

 
  
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