<span>It is called fertilization, an egg is penetrated by a sperm cell, and the haploid genetic information of both male and female gametes combines. The result of this process is a diploid cell called a Zygote. A zygote cell receives half chromosomes from its female parent and half from it's male parent. </span>
I think it's the last one: The statement is considered pseudoscience because her advice involves an opinion.
He observed dairymaids milking cows with cowpox to see if the statement was true before forming a hypothesis.
Just like spermatogenesis<span>, </span>oogenesis<span> involves the formation of haploid cells from an original diploid cell, called a primary oocyte, through meiosis. The female ovaries contain the primary oocytes. There are two major differences between the male and female production of gametes.</span>