why prokaryotic 70S and eucaryotic 80S
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All prokaryotes have 70S (where S=Svedberg units)ribosomes while eukaryotes contain larger 80Sribosomes in their cytosol. The 70S ribosome is made up of a 50S and 30S subunits. The 50S subunit contains the 23S and 5S rRNA while the 30S subunit contains the 16S rRNA.
Eukaryotic ribosomes are also known as 80Sribosomes, referring to their sedimentation coefficients in Svedberg units, because they sediment faster than the prokaryotic (70S) ribosomes. ... Both subunits contain dozens of ribosomal proteins arranged on a scaffold composed of ribosomal RNA (rRNA).
Eukaryotic ribosomes are also known as 80Sribosomes, referring to their sedimentation coefficients in Svedberg units, because they sediment faster than the prokaryotic (70S) ribosomes. ... Both subunits contain dozens of ribosomal proteins arranged on a scaffold composed of ribosomal RNA (rRNA).
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