All of the Following Statements About Ribosomes Are Correct EXCEPT

Multiple Choice

All of the following statements about ribosomes are correct EXCEPT which one?

A) 70S prokaryotic ribosomes are made up of a and a 50S subunit.
B) 80S eukaryotic ribosomes are made up of a 40S and a 60S subunit.
C) The function of rRNA is to act as mRNA for the synthesis of ribosomal proteins.
D) Eukaryotic and prokaryotic ribosomes both contain 5S RNA.
E) In eukaryotes some ribosomes are attached to the rough endoplasmic reticulum.