Advertisements
Advertisements
Question
To initiate translation, the mRNA first binds to ______.
Options
The smaller ribosomal sub-unit
The larger ribosomal sub-unit
The whole ribosome
No such specificity exists
Advertisements
Solution
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
RELATED QUESTIONS
Differentiate between the following:
mRNA and tRNA
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.
If the base sequence of a codon in mRNA is 5'-AUG-3', the sequence of tRNA pairing with it must be ______.
In transcription in eukaryotes, heterogeneous nuclear RNA (hnRNA) is transcribed by ______.
The most abundant type of RNA in the cell is ______.
Which of the following pair lack the unit membrane?
A ribozyme is an:
The exon part of mRNA has code for ______
What is the role of RNA polymerase III in the process of transcription in eukaryotes?
Identify the correct statement.
Which is the “Only enzyme” that has “Capability” to catalyse Initiation, Elongation and Termination in the process of transcription in prokaryotes?
Identify the correct statement.
What are the functions of methylated guanasine cap?
What are the functions of poly-A “tail” in a mature on RNA?
- Assertion: Ribosomal RNA is synthesized in the nucleus of the cell.
- Reason: It is translated with the enzyme RNA polymerase III.
