Originally Posted by houtex54
ALL is not hereditary. The chromosome mutations characterizing ALL are not in the germ cells, but in the stem cells of the bone marrow. That means the mutation event happened AFTER conception. So it is neither contagious nor hereditary.
I dont buy this. I have seen too many cases of ALL running in families, including my own.
For a start, there is a two-mutation theory floating around which says that one mutation occurs before birth, and a second random one after birth which triggers the full condition.
Secondly, no-one really knows what causes mutation or poor cell-copying and it is possible that poor copying of certain kinds might be facilitated by genetic factors.
However - there is absolutely nothing you can do about it so there is not much point in worrying about it any more than meteor strike.