Which of the following statements about ribosomes has never been documented in nature? A. some prokaryotes have 70s ribosomes (with 30s and 50s ribosomal subunits)
B. some eukaryotes have 80s ribosomes (with 40s and 60s ribosomal subunits)
C. some prokaryotes have 80s ribosomes (with 40s and 60s ribosomal subunits)
D. some eukaryotes have 70s ribosomes (with 30s and 50s ribosomal subunits)
E. all of the above