Posted by:
amarilrose
at Wed Dec 13 12:28:23 2006 [ Email Message ] [ Show All Posts by amarilrose ]
bsleeper, since you kinda asked a two-part question... and I love genetics in general, here is my expanded answer for you (I leave fractions unsimplified to make proportions perhaps a little clearer):
As "Morphine" explained,
Pastel Het Pied X Het Pied would statistically produce:
1/8 Pastel (NOT Het Pied)
2/8 Pastel Het Pied
1/8 Pastel Pied
1/8 Normal (NOT Het Pied)
2/8 Het Pied (Normal looking)
1/8 Piebald
Which would have to marketed as:
(3/8) Pastels 66% possible Het Pied
(1/8) Pastel Pied
(3/8) 66% possible Het Pied (Normal looking)
(1/8) Piebald
...but you also asked about another cross:
Pastel Het Pied X Pastel Het Pied would statistically produce:
1/16 Super Pastel (NOT Het Pied)
2/16 Super Pastel Het Pied
1/16 Super Pastel Pied
2/16 Pastel (NOT Het Pied)
4/16 Pastel Het Pied
2/16 Pastel Pied
1/16 Normal (NOT Het Pied)
2/16 Het Pied (Normal looking)
1/16 Pied
Which would be marketed:
(3/16) Super Pastel 66% possible Het Pied
(1/16) Super Pastel Pied
(6/16) Pastel 66% possible Het Pied
(2/16) Pastel Pied
(3/16) 66% possible Het Pied (Normal looking)
(1/16) Pied
... depending on what your goals are, however, I have a suggestion that should make all of this simpler. Based on your original question, my best guess is that want to produce Piebald Pastels. I think that if you have a Pastel Het Pied, the best thing you cross it to would be a Pied (visible morph = homozygous for the recessive allele). Here is why:
Pastel Het Pied X Pied would statistically produce:
1/4 Pastel Het Pied
1/4 Pastel Pied
1/4 Het Pied (Normal Looking)
1/4 Pied
No mystery, no "possible" Hets! If a snake produced from this cross is not Piebald, you know that it is Het Piebald! Much easier marketing!!
Hope this helps. 
~Rebecca ----- 0.1 Dumeril's Boa '04 (Courtney)
1.2 Ball Pythons
[1.0 '05 Orange Hypo (Specter)]
[0.1 '05 Het Orange Hypo (Sylvia)]
[0.1 '03 Normal (Sue)]
0.2 American Pit Bull Terriers (40lb darling lap dogs:Brandy&Mara)
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