The Site of Spermatogenesis and the Functional Cell Types Participating (Fig. 1). Spermatogenesis is the process of producing sperm with half the number of chromosomes (hapliod) as somatic cells. The process of spermatogenesis then allows the recombination of male and female haploid gametes at fertilization. This provides genetic contributions from both parents without increasing the number of chromosomes each generation.
ISO, founded in 1947, is a worldwide federation of national standards bodies from some 100 countries, with one standards body representing each member country. The American National Standards Institute (ANSI), for example, represents the United States.
The name ISO comes from the Greek word âisos,â which means equal. The name used for the standards organization is the same in all countries. ISO consists of standards institutes in 164 countries that work together to create industry standards. Some standards institutes are part of their countries' governments while others are private organizations.