Please 'splain me this

[LizStreithorst]

I understand that the shiny parts on the body of my Koi is due to the stripeless gene.  Why is the shiny only in patches?  Why does it not cover the entire body of the fish?

Mug, would you be kind enough to translate what my pair is in to Greek for me. 

[Mugwump]

Gm/gm S/S..........the shiny iridescent splotches are random around the parts of the melanin layer that hold the expression.....hence mostly different on each angel....some may appear very similar, as in 'twins'..but they're actually not.....

[LizStreithorst]

I'm so ignorant that I had too look on the genetic calculator that gm means gold marble.  I see that it's an incomplete dominant.  Does that mean that of I were to breed a g to a Gm I would get a percentage of golds?  I don't want to do that.  I just want to make sure I'm thinking right.

From what you say there is no way to select for iridescence.  I figured as much.  If it could be done someone would have already done it.  Is there a word in Greek for the iridescence?  I doubt it.

[Mugwump]

I'm so ignorant that I had too look on the genetic calculator that gm means gold marble.  I see that it's an incomplete dominant.  Does that mean that of I were to breed a g to a Gm I would get a percentage of golds?  I don't want to do that.  I just want to make sure I'm thinking right.

From what you say there is no way to select for iridescence.  I figured as much.  If it could be done someone would have already done it.  Is there a word in Greek for the iridescence?  I doubt it.

Yes, you can attempt to breed for more/less iridescence..with selective breeding...

If you bred a (g) to a (gm)....you'd get...
25.00%   Gm/g Gold Marble
25.00%   Gm/+ Silver Gold Marble
25.00%   g/+ Silver
25.00%   +/+ Silver
remember gold in single dose is recessive....no expression