A) 50S
B) 60S
C) 40S
D) 0S
Correct Answer: B
Solution :
Ribosomes are cell organelles, which function as cell's protein factories. They provide for the sites of protein synthesis involving translation of the genetic information encoded in the messenger RNA (mRNA). On the basis of sedimentation coefficient they are of two types: [a] 70S ribosomes These are found in prokaryotes, ie, bacteria and blue-green algae. 70S ribosomes have 2 subunits, ie. 30S and 50S. [b] 80S ribosomes These are found eukaryotic ribosomes are 79-80S in found in and 80S in mammals. 80S ribosomes have 2 subunits, ie, 40S and 60S.
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