homogenetic

from The Century Dictionary.

• Of, pertaining to, or characterized by homogenesis; passing through the same cycle of existence as the parent.
• Having a common origin; derived from the same structure, however variously modified, as organs or parts of any two or more animals: synonymous with homologous in its biological sense, and distinguished from homoplastic.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Biol.) Homogenous; -- applied to that class of homologies which arise from similarity of structure, and which are taken as evidences of common ancestry.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective biology homogenous; applied to a class of homologies that arise from similarity of structure and are taken as evidence of common ancestry.