Now, let's take a look at the following section of the diagram. So in this section, we see that once we actually drill a hole in the zona palusa eventually that sperm cell will make its way to the membrane of that excel and the membrane of the sperm cell and the membrane of the xcel will begin to fuse. And as they begin to fuse, we have this opening where the nucleus of that sperm cell will make its way into the cytoplasm of that egg cell and eventually that sperm nucleus will make its way to the egg nucleus. We have the fusion of these two nuclei and we restore the deployed number of chromosomes. We combine 23 chromosomes from the male parent and 23 chromosomes from the female parents who produce 46 chromosomes which is the deployed number of chromosomes in the human organism. So once the fusion of the two nuclei takes place we have different types of metabolic processes such as, for example, protein synthesis and other processes that eventually lead to embryological development.