What does 'S' refer in a 70S and 80S ribosome?

In 70S and 80S ribosomes, 'S' stands for

Give difference between 70 S and 80 S ribosomes.

Which of the following are correct for the cell which has naked ds circular DNA? (a) Both 70S and 80S ribosome (b) Histone absent ( c ) Compartmentalisation of cytoplasm absent (d) Always diploid

70 S ribosomes occur in

The prokaryotes have both 70s and 80S ribosomes.

Subunits of 80S ribosome are

The larger sub-unit in 80S ribosome is

rRNA : protein ratio of 80 S ribosomes is