Gene duplication generates extra gene copies in which mutations can accumulate without risking the function of pre-existing genes. Such mutations modify duplicates and contribute to evolutionary novelties. However. the vast majority of duplicates appear to be short-lived and experience duplicate silencing within a few million years. https://qnvzwdpf45e9sh.timeblog.net/70688065/fetal-nuchal-translucency-scan-in-nigeria