What inheritance pattern describes the Yellow Belly trait genetically?

Co-dominant

The Yellow Belly trait is genetically inherited in a co-dominant fashion, which is also frequently described as incomplete dominance. This classification means that an organism only requires one copy of the specific gene from either parent to visibly display the trait. This contrasts with simple dominant traits, which require only one copy but often mask recessives completely, and recessive traits, which require two copies to be expressed. Because it is co-dominant, offspring receiving one copy exhibit the Yellow Belly phenotype, setting up unique ratios when two morphs are bred together, unlike simple Mendelian dominant/recessive crosses.