There are three models which can be used to to trace genetic inheritance :
1) Punnet square : The Punnett square is a square diagram that is used to predict the genotypes of a particular cross.
2) Mendal inheritance : This is also used to study the inheritance by using different character.
3) Pedigree analysis: Pedigree Analysis is a tabular representation of a family history by taking a particular disease or character into consideration.
