BUT from a couple recessive white both carrier of a lav-allel
NEVER will be born grigioperla !!
Why?
E/E (or eb/eb)
c/c Lav+/lav X E/E (or eb/eb)
c/c Lav+/lav will result in ALL white chicks.
- 25% E/E (or eb/eb)
c/c Lav+/Lav+ = phenotype white;
- 50% E/E (or eb/eb)
c/c Lav+lav = phenotype white carrier of 1 lav-allel;
- 25% E/E (or eb/eb)
c/c lav/lav = phenotype white even there are 2 alleles lavender but c/c is EPISTASIS over it (as I already said over ALL colorations).
[Modificato da Danny_57 08/12/2010 11:45]