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To: RightWhale
Does this say that the gene is actually in two parts and each part is on a different chromosome but that if either part is present the gene manifests?

I read it to say that the gene is required and is either on C3 or C4. If a pair of mis-matched flies breed it's possible that the gene will not be on either chromosome in the offspring so those offspring will be sterile.
12 posted on 09/07/2006 2:48:02 PM PDT by Filo (Darwin was right!)
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To: Filo

Possible. So the gene would not necessarily be on both, but could be on neither. In any case the gene is complete in itself on either chromosome.


14 posted on 09/07/2006 2:51:00 PM PDT by RightWhale (Repeal the law of the excluded middle)
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