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Genetic Engineering and Recombinant DNA Technology
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Genetic engineering is possible because
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A
DNA can be cut at specific sites by endo nucleases like DNAase
💡 Explanation:
Genetic engineering is the technique by which the genetic material of an organism is manipulated. The desired genes from any organism are isolated and are transferred into the organism where those genes are expressed and desired products are obtained. Manipulation of an organism's genome is not a simple process and involves a number of tools including restriction enzymes.
Restriction enzymes are the most important tools in genetic engineering. They make cuts in the DNA at specific positions. They may be exonuclease if they make cut at the end of DNA or endonuclease if they make cut within the DNA. Restriction endonucleases cut the DNA into fragments like DNAsse. The fragments of DNA are then jouned by DNA ligases.
So, the correct answer is 'DNA can be cut at specific sites by endo nucleases like DNAase'.