Answer:
1. Phenotype
2. Dominant
Step-by-step explanation:
Phenotype of an organisms refers to the noticeable characteristics of such organisms. According to this question, Lily's dog inherited a gene for his black coat color from his parents. The black coat color is the observed trait of such dog, hence, the black coat color is the PHENOTYPE.
The black color allele is dominant over the white color allele in the color gene, hence, the gene that encodes this black color in Lily's dogs is DOMINANT.