Answer:
Protein - WHITE
Gene - white (italics)
Phenotype - white
Step-by-step explanation:
Usually, in genetics, to make it clearer whether the gene, protein, phenotype, mutation, etc. are being talked about, different styles are used. These actually differ between different organisms which makes it even more confusing!
Usually, the gene name is denoted in italics, and the protein is in capital letters. The phenotype is always written as normal.