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A deer with a neck Which was longer by half Than the rest of the family(Try not to laugh!)By stretching and stretching Became a Giraffe - discuss
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A deer with a neck Which was longer by half Than the rest of the family (Try not to laugh!) By stretching and stretching Became a Giraffe DISCUSS! The deer in the rhyme has a longer neck than the rest of its family because a genetic mutation has occurred. This is when the protein that codes for neck length is produced differently, due to a change in the genetic code (order of bases) in the DNA of the deer. This could have happened in one of three ways: Substitution, where one base is substituted for another, addition, where an extra base is added, or deletion, where one base is omitted from the code. It is not possible for the deer to have just stretched and stretched to become a giraffe. It will have to have gone through evolution, and its future generations will have been the ones with the long neck. The way in which this could have...
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