Assertion: nucleolus | /r/HasProperty | recognized in 1960
Facets:
Source sentences:
text: In the 1960s it was recognized that ribosomes, the protein factories, are produced in this organelle.
text: In the 1960s it was recognized that ribosomes, the protein factories, are produced in this organelle.
text: In the 1960s it was recognized that ribosomes, the cell's protein factories, are assembled in this organelle.
text: In the 1960s it was recognized that ribosomes, the cell’s protein factories, are assembled in this organelle.