If I cross an amber to a snow, how many babies should I hold back to breed for F2?
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Breeding Q...
Shaky
Aug 11, 2003 12:57 PM
Replies (1)
Paul Hollander
Aug 11, 2003 03:06 PM
Sounds like you are trying for a combination of several mutants. Snow is a combo of amelanistic and anerythristic. Amber is what -- hypomelanistic and caramel? Post if that is wrong.
Rule of thumb -- multiply by 1/4 for every mutant you want in a combination produced by two heterozygotes. If you are going for a four mutant combo, then the odds of getting all four mutants in one F2 is 1/4 *1/4 * 1/4 *1/4 = 1/256. Not good odds there. This looks like a multipair, multiyear project.
Another problem is telling whether the anerythristics are also caramel and whether the snows are also hypomelanistic.
I'd keep and breed all the female F1s. And keep roughly half as many males as females. YMMV.
Paul Hollander
