Advertisements
Advertisements
प्रश्न
To initiate translation, the mRNA first binds to ______.
विकल्प
The smaller ribosomal sub-unit
The larger ribosomal sub-unit
The whole ribosome
No such specificity exists
Advertisements
उत्तर
To initiate translation, the mRNA first binds to the smaller ribosomal sub-unit.
Explanation:
To initiate translation, the messenger RNA (mRNA) molecule first binds to the smaller ribosomal sub-unit. In its inactive state, the ribosome exists as two separate pieces, the large and small subunits. The process begins when the small subunit recognises and binds to the mRNA strand, often scanning for the start codon (AUG). Once this initial binding occurs and the initiator tRNA is in place, the larger ribosomal sub-unit then joins the complex to form a complete, functional ribosome that can begin building the protein chain.
APPEARS IN
संबंधित प्रश्न
Explain the process of transcription in Eukaryotes.
Explain the process of making heterogeneous nuclear RNA (hnRNA) into a fully functional mRNA in eukaryotes. Where does this process occur in the cell?
Answer the following question.
Construct and label a transcription unit from which the RNA segment given below has been transcribed. Write the complete name of the enzyme that transcribed this RNA.
With regard to mature mRNA in eukaryotes.
Regulatory proteins are the accessory proteins that interact with RNA polymerase and affect its role in transcription. Which of the following statements is correct about regulatory protein?
The amino acid attaches to the tRNA at its ______.
In transcription in eukaryotes, heterogeneous nuclear RNA (hnRNA) is transcribed by ______.
On the ribosome, mRNA binds ______ and two sites in the ______ for subsequent amino acids to bind to be close enough to each other for the formation of a peptide bond.
A special feature of viruses is that they:
Ribozyme is a/an:
The most likely method, used to determine the structural details of the cell organelle is ______.
Which of the following pair lack the unit membrane?
Sigma factor is a component of ______.
Refer the given diagram. What does it represent?
Identify the correct statement.
Identify the correct statement.
- Assertion: Ribosomal RNA is synthesized in the nucleus of the cell.
- Reason: It is translated with the enzyme RNA polymerase III.
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:
