Do the data support a co-dominance model of inheritance for this feather phenotype?
- JazSincLv 71 month ago
With no other information given, that appears to be an incomplete dominance and not a codominance.
Get out your microscope and examine individual feathers. If you find BOTH straight and curled feathers in the "slightly frizzled" chickens then it's a codominance. If you find that the individual feathers are slightly curled then it's incomplete dominance.
Your teacher sucks for trying to cause confusion between codominance and incomplete dominance. Repeating for emphasis: your teacher sucks.