Draw a chart to show the first generation and second generation resulted due to the fusion of gamets of long-winged housefly (HH) and short-winged housefly (hh). Which generation shows the law of purity of gamets? Justify it.

Law of purity of gametes can be observed in every generation. During gamete formation each pair of factor segregate into individual gamete and only one allele is transferred to the offspring from any pair of traits.