Probability
A number that describes how likely it is that an event will occur
Punnet square
A chart that shows all possible ways alleles can combine in a genetic cross.
Phenotype
A physical appearance, or visible trait
Genotype
Genetic makeup, or alleles
Homozygous
An organism that has two identical alleles.
Heterozygous
An organism that has two different alleles for a trait
Incomplete dominance
When one allele is only partially dominant
Codominance
When both alleles for a gene are expressed equally.