Purebred vs. hybrid
Recessive
An allele that is masked when a dominant allele is present
Dominant
An allele whose trait always shows up in the organism when the allele is present
Hybrid
An organism that has two different alleles for a trait; an organism that is heterozygous for a particular trait
Genotype
An organisms genetic makeup, or allele combination
Phenotype
An organisms physical appearance or visible traits
Homozygous
Having two identical alleles for a trait
Codominance
When both alleles can be observed in a phenotype
Incomplete dominance
When the offsprings phenotype is a combination of the parents phenotypes
Purebred
The offspring of many generations that have the same traits