The control of all the normal activities of a bacterium depends upon its single chromosome and small rings of genes called plasmids. In genetic engineering pieces of chromosome from a different organism can be inserted into a plasmid. This allows the bacteria to make a new substance.
You need to know the steps of this process. They are:
Genetic engineering is used for the production of substances which used to be both expensive and difficult to produce. Examples include:
Genetic engineering and insulin production
Genetic engineering is a way of producing organisms which have genotypes best suited for a particular function. In the past man has used selective breeding to achieve this. This was done by choosing only his most suitable animals and plants for breeding.
Genetic engineering has several advantages over selective breeding. Some are:
There are dangers involved with genetic engineering since it involves creating completely new strains of bacteria. There is a possibility of creating some which are harmful to animal or plant life.
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