Quote:
Originally Posted by RXB
There seems to be an idea floating around that it takes hundreds or thousands of years to really change anything genetically. That's only when the normal course of things is going on and there's no specific trait that anyone is attempting to promote. If a particular trait is considered highly desirable within an animal population under human control it doesn't take long to heighten that trait's frequency of occurrence rather substantially via selective breeding.
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Find any reputable source/paper stating that substantial or significant species changes can be made to a complex organism like a horse in four generations, even under gene targeting. Every paper I've read disagrees with that notion.