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All other side issues aside lets remember this at least.
Cloning is only making an exact genetic replica of an animal. Say a cow that produced a lot of milk or a particular population of cattle that had an ideal amount of flesh or whatnot.
We aren't genetically modifying animals at least. Just copying them. I don't know though. I DO think a variety should still be kept available for use to manage problems that might arise over time with such a thing. I don't think it would be wise to say, exterminate all but one variety of animal that fits our consumption needs best.
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