Which of these subunits are present in prokaryotes?
A
20 S
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B
30 S
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C
40 S
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D
60 S
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Solution
The correct option is B
30 S
All prokaryotes have 70S ribosomes while eukaryotes contain larger 80S ribosomes in their cytosol. The 70S ribosome is made up of a 50S and 30S subunits.