The primary job of rRNA in the larger subunit of ribosome is toProvide some part of the genetic informationFacilitate the binding of tRNA to the ribosomeFacilitate the transfer of peptidyl bonds between amino acidsKeep both the units of the ribosome bound together

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Standard XII

Biology

Ribosome Structure

The primary j...

Question

The primary job of rRNA in the larger subunit of ribosome is to

Provide some part of the genetic information

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Facilitate the binding of tRNA to the ribosome

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Facilitate the transfer of peptidyl bonds between amino acids

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Keep both the units of the ribosome bound together

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Solution

The correct option is C Facilitate the transfer of peptidyl bonds between amino acids
rRNA in the larger ribosomal subunit acts as an enzyme and catalyses the transfer of peptidyl bonds between amino acids during the formation of the polypeptide chain. This is the reason ribosomes are also known as ribozymes.

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Similar questions

Q. The primary job of rRNA in the larger subunit of ribosome is to

Q. Match the following.
(a) tRNA 1. Linking of amino acids
(b) mRNA 2. Transfer of genetic information
(c) rRNA 3. Nucleolar organising region
(d) Peptidyl transferase 4. Transfer of amino acid from cytoplasm of ribosome

Read the following statement and inferences, and select the correct option.

Statement: The core of the larger ribosomal subunit, where the transfer of the peptidyl bonds happen from one amino acid to the next, is made up entirely of rRNA

Inference:

A. rRNA is smaller than proteins and hence can fit in the smallest of crevices

B. rRNA has catalytic capability and hence confers the name ribozyme to ribosome

C. rRNA has higher binding affinity with each other and hence excludes proteins from its core structure

D. The proteins which make up ribosome do not have a significant role to play in its catalytic activity

Which of the inferences are true?

Q. A smaller subunit of ribosome has a binding site for ______ and the larger subunit has two binding sites for tRNA molecules.

Q. Match the following columns.

\begin{matrix} C o l u m n I & C o l u m n I I A . t R N A & 1. L i n k i n g o f a m i n o a c i d s B . m R N A & 2. T r a n s f e r o f g e n e t i c i n f o r m a t i o n C . r R N A & 3. N u c l e o l a r o r g a n i s i n g r e g i o n D . P e p t i d y l & 4. T r a n s f e r o f a m i n o a c i d f r o m t r a n s f e r a s e & c y t o p l a s m t o r i b o s o m e \end{matrix}

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