there was another article on duplication of genes and the evolutionary function of this process:
Nature,vol 421, p63 2003:
it seems that the duplication of genes protect the organism against null mutations (where the gene function is completely lost). This even works if the gene sequence is the second copy has diverged quite a lot of the original one. usually it still functions on a similar level.
Nature,vol 421, p63 2003:
it seems that the duplication of genes protect the organism against null mutations (where the gene function is completely lost). This even works if the gene sequence is the second copy has diverged quite a lot of the original one. usually it still functions on a similar level.