A chicken with both black and white feathers from a cross between a black-feathered and a white-feathered parent.

A tall plant and a short plant produce offspring that are of medium height.

A straight-haired dog and a curly haired dog produce a puppy with curly hair. 

Two green pea plants produce only green offspring.

A blue-eyed parent and a brown-eyed parent produce offspring with brown eyes.