[Mamzelle]

The real interesting info is in the X. That's where the discussion of the evo "Eve" comes from, and how groups of people with a common X "ances-tress" are identified. The Y actually loses some info in recombination, but the X is relatively inviolate.

[js1138]

My question, though, is why every living male des not have the same Y chromosome. It's a simple question. There are no human beings not directly descended directly from Noah. There are no male survivors of the flood except Noah and his sons.

[Junior]

Except there were four (count them, 4) human X chromosomes on the Ark and only one (1) human Y chromosome. Now, why don't you answer the question?