I had forgotten about those two famous sisters, though I had no idea their father was famous. As for the other two examples, good but not great. Caballe did not bread a singer of distinction, though as I mentioned, her daughter is a singer. none of the really great singers have produced a 'rival' in reputation. Though a number of the ones I can think of did not have children at all.
I guess it may be the same in sports and that may indicate that the genes is only part of the answer and possibly not the prime issue.
Mike