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NEET2012BotanyCell - The Unit of LifeActual

What is true about ribosomes?

Options

  1. AThe prokaryotic ribosomes are 80 ~S , where S stands for sedimentation coefficient
  2. BThese are composed of ribonucleic acid and proteins
  3. CThese are found only in eukaryotic cells
  4. DThese are self-splicing introns of some RNAs

Correct answer

B. These are composed of ribonucleic acid and proteins

Step-by-step solution

Ribosomes are large, non-membranous, RNA-protein complexes which are necessary for protein synthesis. In prokaryotes, 70 ~S type of ribosomes are found while 80 ~S type of ribosomes are found in eukaryotes.

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