MCQ
Select one which is not true for ribosome:
  • A
    Made of two sub-units.
  • B
    Form polysome.
  • C
    May attach to m+RNA.
  • D
    Have no role in protien synthesis.

Answer

  1. Have no role in protien synthesis.

Explanation:

Ribosome is truly called as protein factory and they play a vital role in protein synthesis. Thus, the statement that ribosome’s have no role in protein synthesis is not true. Other statements are true for ribosome Ribosome’s are made up of two subunits, i.e., large and small. In prokaryotes it is 70S (50S and 80S). In eukaryotes it is 80S (60S and 40S). Polyribosome’s several ribosomes attach to a single mRNA and form a chain like structure. Polysomes they are formed by the attachment of ribosome’s with mRNA.

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