MCQ
Select one which is not true for ribosome:
- AMade of two sub$-$units.
- BForm polysome.
- CMay attach to $\text{m+RNA.}$
- ✓Have no role in protien synthesis.
✓
Answer
Correct option: D.
Have no role in protien synthesis.
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 $\text{mRNA}$ and form a chain like structure.
Polysomes they are formed by the attachment of ribosome’s with $\text{mRNA.}$
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 $\text{mRNA}$ and form a chain like structure.
Polysomes they are formed by the attachment of ribosome’s with $\text{mRNA.}$
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