This is the physical expression or characteristics of that genotype. Using our cake analogy, if genotype is the recipe, then phenotype is the actual baked cake - its taste, texture and appearance.
Homozygous: This term describes when an individual has two copies of the same allele for a trait in their genotype. Like having double amount of chocolate in your cake recipe!
This term describes when an individual has two different alleles for a trait in their genotype. Like having one ingredient as chocolate and another as vanilla in your cake recipe!