We have to consider that almost all the human body cells contain 46 chromosomes, or 23 pairs of them because they are diploid cells, in other words, they contain 2 loads of chromosomes (2n), each from each parent. Whilst, we know that gamete cells, such as sperm and ovules have a only load of these chromosomes (n), in humans each gamete has 23 pairs of chromosomes, as we can see in the first answer option. This leads that, after fertilization, the process of
