The course will concentrate on Quantitative genetics, Statistical Genetics and their relationship with molecular genetics, The student will have an idea about the variables especially those of Quantitative manner, then the variances (Phenotypic and Genetic) as affected by the fixed and random effects will be discussed, thereafter the genetic parameters (heritability, Repeatability and genetic and phenotypic correlations) estimation methods will be detailed and will be incorporated within many Genetic models including BLUPs, GBLUPs and Selection index methodology. Selection methods and the calculation of the genetic gain will be explained .