Tom S wrote:

> "Dana Myers" > wrote in message
> m...
>
>>I'd think that the seeds would contain one genome or another.
>
>
> They very well may, but grapevines are not replicated from seeds - at least
> not in viticulture. They are cloned from cuttings. This is true of many
> cultivated species for that matter (e.g. apples and roses) when genetic
> diversity is _not_ desired.

Right - I understand. However, I was thinking of how such a mutation would
occur and propagate in nature.

Dana