OMIA:002377 : Knob, basal

Categories: Craniofacial phene

Possible human homologue (MIM number): 601413 (gene)

Cross-species summary: The basal knob is a prominent bump, swelling, bulge, or projection at the base of a bird's upper bill.

Species in which this phene is found:
swan goose (Anser cygnoides)

Edit History


  • Created by Imke Tammen2 on 11 Aug 2021
  • Changed by Imke Tammen2 on 11 Aug 2021
  • Changed by Imke Tammen2 on 13 Oct 2022