the sex chromosomes
University researchers have identified a new type of organelle that has not been discovered in gametes before. According to them, a failure in its function causes infertility because it is responsible for the organization of the chromosomes in the sex cells: "The discovery advances us towards finding medical solutions"
Shmuel is worried about our future, the men "I heard that the male Y chromosome is diminishing over time, is it possible that every generation male mammals are losing more and more of their characteristics? Is it possible that they will disappear?"