There are sometimes similarities in the embryonic stages of organisms that do not exist in the adult stages.
Explanation:
When you make the cross. You get
HH HH Hh Hh.
So the genotypic ratio - 2:2 which is also 1:1.
The phenotypic ratio - 4. Since Hh and HH are horned organisms. So they only differ in their genotypic make up.
Answer:
I looked it up and the answer is fluid mosaic.