Genetics is a discipline of the Biological sciences that studies personal traits the human or living organism inherit from its ancestors through genes and Embryology studies the development of the fertilized embryo from the ovum to the fetus stage. Human genetics is the study of inheritance in human beings. Human characteristics are inherited from parents to offspring in discrete unites called genes. Genes consist of specific information coded in the chromosome that consists of segments of chromosomes. Human genetics includes a variety of overlapping fields like classical, molecular, biochemical, population, developmental, clinical and cytogenetics.