Thanks everyone!

Claude

"James Aldridge" wrote in message
...
| As an aside, it's worth mentioning that many flowering plants, perhaps
| as many as 50% or so of all species, are polyploid. That is, they
| carry more than two copies of each chromosome and therefore more than
| two alleles of each gene.
|
| Polyploidy is often a good thing in that it may confer larger size and
| more robustness. It is sought in some orchid breeding by using agents
| such as colchicine that inhibit proper chromosome behavior during cell
| division.
|
| Jim