A) 40S
B) 60S
C) Both [a] and [b]
D) None of these
Correct Answer: C
Solution :
Ribosomes are submicroscopic naked granular nucleoprotein organelles which were first seen by Claude (1941) but first studied by Robinson and Brown (1953) in bean root cells and Palade (1955) in animal cells. Ribosomes occur in both prokaryotes and eukaryotes. In prokaryotes, 70S type ribosomes are found and they are divided into 2 subunits, ie, the larger 50S subunit and smaller 30S subunit. In eukaryotes 80S type ribosomes are found. They are divided into 2 subunits, the larger 60S and smaller 40S.
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