Calling genetic gurus!

[Folly's place]

That's what I wondered. If both parents are heterozygous for white, they can then produce yellow, 25% of offspring. Is that right?
Mary

 

[nicalandia]

That's what I wondered. If both parents are heterozygous for white, they can then produce yellow, 25% of offspring. Is that right?
Mary

Yes

 

[3riverschick]

Nicalandia,
Can you think of any genetic scenario where 2 pure bred Light Sussex
eWh/eWh S/S Co/Co
throw chicks with tan on them in addition to the yellow down? Like a faint tan mark on the top of the head or on the back?
Thanks,
Karen

 

[3riverschick]

Nicalandia,
Cannot find any evidence on adult Light Sussex parents to prove impurity. Only some chicks affected.
No chance for cock other than pure Light Sussex to sire chicks.
Thanks,
Karen