Punnett Square
A diagram used to predict the possible genotypes of offspring if you know the genotype of the parents
Probability
The mathematical chance of a specific outcome in relation to all the possible outcomes
Ratio
An expression that compares 2 quantities
Pedigree
Traces the occurrence of a trait through generations of a family
Sex-Linked Disorders
Disorders associated with with an allele on a sex chromosome ( the X or Y chromosome)