Put these options under Phenotype/GenotypeD/ominateR/ecessive/

A trait that can cover another: BLACK FUR over White Fur. Upper Case Letter represents the Alleles.

A trait that can be covered: WHITE FUR can be covered by black fur. Lower Case Letters represents the Allele.

Letters that represent the actual genes: Bb, BB,

bb

Physical Trait such as Black Fur or White Fur

Phenotype/Genotype:

Dominant: BLACK FUR (BB)
Recessive: WHITE FUR (bb)

Trait that can cover another:
Black Fur (BB) can cover White Fur (bb)