A poultry breeder crossed pure-breeding chickens with crested heads (CCCCCC) with chickens with non-crested heads (cccccc). The allele for a crested head (CCC) is dominant to the allele for a non-crested head (ccc).
The Punnett square shows the genotypes of the offspring resulting from this cross:
| C | C | |
|---|---|---|
| c | Cc | Cc |
| c | Cc | Cc |
Explain a conclusion that can be made from the results of this cross.
