Answer:
Genetic engineering is when scientist rearrange the DNA of a living thing to change the outcome of it's life. Genetic engineering has several bad aspects. One of the changing the DNA of a living thing may cause harmful birth defects to the organism. The living thing can also escape or accidental repopulate with a organism that live out in the wild causing animals in the wild to be born with altered DNA, changing the state of an entire population of a specific species. The most important though is that it causes unnecessary harm to living things and changes their lifestyle, when it was the way that nature intended them to be.
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