Originally posted by RATTY...
hmmm i think your understanding of genes isn't entirely accurate.
There can be more than one gene incontrol of the same thing which is why in things like human height there is quite a range. There can be defects most notably a tumor in the gland responsible for production of human growth hormone. But that isn't really genes per se.
Rather than finding all these genes it is much easier to just artificaly breed those that allready display the large genes etc.. we have been doing that for thousands of years with crops,livestock and dogs. One of the reasons many of them are very prone to inherited diseases.
Also i really don't see a reason to extract the gene? What would you be doing with it? Trying to make whales grow smaller or bigger? It doesn't really make much sense and would require a huge effort for little means as far as i can see.
Also my biology may be out of touch but when i studied genetic engineering , it wasn't all that easy (specialy in anything with a slow life cycle) and was more about adding in a new gene like one for resistance than actualy altering an all ready working gene.
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