cell differentiation | male gamete generation | cellular process | multicellular organismal reproductive process | gamete generation | reproduction | reproductive process | multicellular organism development | cell cycle | multicellular organism reproduction | anatomical structure development | meiotic cell cycle | developmental process | spermatogenesis | sexual reproduction | multicellular organismal process
intracellular membrane-bounded organelle | cell | nuclear lumen | nucleolus | cytoplasm | intracellular organelle | protein-containing complex | ribonucleoprotein complex | membrane-bounded organelle | preribosome | nucleus | organelle | membrane-enclosed lumen | small-subunit processome | cytosol | intracellular