Cloning into the Future
Clone is an organism, or group of organisms, derived from another organism by an asexual (nonsexual) reproductive process. The word clone has been applied to cells as well as to organisms, so a group of cells stemming from a single cell is also called a clone. Usually the members of a clone are identical in their inherited characteristics-that is, in their genes -except for any differences caused by mutation. Identical twins, for example, who originate from the division of a single fertilized egg, are members of a clone; whereas non-identical twins, derived from two separate fertilized eggs, are not clones.
Through recent advances in genetic engineering, scientists can isolate an individual gene (or group of genes) from one organism and grow it in another organism belonging to a different species. This technique is called cloning because it uses clones of organisms or cells. It has great economic and medical potential and is the subject of active research (“Clone”).
The idea of cloning came about in the early 1900’s. A German scientist named Hans Spemann first thought of the cloning methods around 1938. One of the first attempts on cloning, however, was by a scientist named Adolph Eduard Driesc
Through recent advances in genetic engineering, scientists can isolate an individual gene (or group of genes) from one organism and grow it in another organism belonging to a different species. This technique is called cloning because it uses clones of organisms or cells. It has great economic and medical potential and is the subject of active research (“Clone”).
The idea of cloning came about in the early 1900’s. A German scientist named Hans Spemann first thought of the cloning methods around 1938. One of the first attempts on cloning, however, was by a scientist named Adolph Eduard Driesc
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Many plants are cloned by tissue culture techniques and sold commercially. Some of the ferns such as Boston fern and Staghorn fern are propagated through tissue culture. Also, many varieties of African violet are propagated asexually by tissue culture. We can take a leaf from a plant like the plant above. The leaf is then cleaned of contaminating microorganisms, fungal spores, small insects or whoever might be on board. The leaf is then cut into small pieces in a laminar flow hood that provides a clean working surface. The small pieces of plant tissue that are cut out of the leaf are called explants. The explants are then placed on a chemical medium that provides nutrients for the plant tissues to grow and usually some plant hormones to encourage development of new organs from the plant tissue.
Though these repercussions in cloning animals do exist, the benefits certainly outweigh them. For an endangered species like the Giant Panda,
Some topics in this essay:
Cloning, Dr Ian Wilmut, DNA, Hans Spemann, Human Cloning, United States, Philadelphia, Morag, Megan, Robert Briggs,
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