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What is cross-species genetics?Is it still practiced now?

 Extracting DNA from an animal and simply putting it inside a human mixing it with a human DNA and it make a human/animal species which will make it a cross species.
Scientists are currently working on ways to genetically engineer farm animals. Atlantic salmon have been engineered to grow to market size twice as fast as wild salmon, chickens have been engineered so that they cannot spread H5N1 avian flu to other birds, and research is being conducted to create cattle that cannot develop the infectious prions that can cause bovine spongiform encephalopathy (aka mad cow disease).  At this point, no GE animals have been approved by the FDA to enter the food supply.


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