A) Only 70S
B) Only 80S
C) Both [a] and [b]
D) Only SOS
Correct Answer: C
Solution :
Ribosomes are the smallest granules, found in the cytoplasm, contain ribosomal RNA (rRNA) and many ribosomal proteins. On the basis of sedimentation coefficient they are of ret types- (i) 70S ribosomes-They are smaller in size and their sedimentation coefficient is (found in bacteria and chloroplast). (ii) 80S ribosomes-Their sedimentation coefficient is 80S and are found in higher plants and animals or eukaryotic cells In 80S ribosome, the larger subunit is 60S and smaller one 40S.
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