So this is basically the cell of the f one generation offspring. So we have these chromosomes. Now this is one homologous pair, this is a second homologous pair. Within this homologous pair we have an uppercase g and a lowercase g. Within this homologous pair we have uppercase T and we have a lowercase t. Now when myosis actually takes place and at the end we form different types of gametes, there are only four possibilities for the gametes. What are these possibilities? Well, basically the upper case g can combine with the uppercase T to form gamete number one, or uppercase g can combine with lowercase T to form gamete number two.