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प्रश्न
What are the functions of poly-A “tail” in a mature on RNA?
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उत्तर
Poly– A tail provides longevity to mRNA’s life. Tail length and longevity of mRNA are positively correlated.
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संबंधित प्रश्न
Explain the process of transcription in Eukaryotes.
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.
To initiate translation, the mRNA first binds to ______.
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:
Sigma factor is a component of ______.
Which enzymes are responsible for the synthesis of tRNA?
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.
Observe the segment of mRNA given below.
(a) Explain and illustrate the steps involved to make fully processed hnRNA?
(b) Gene encoding RNA Polymerase I and III have been affected by mutation in a cell. Explain its impact on the synthesis of a polypeptide, stating the reasons.
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:
Which of the following are the substrates used during RNA elongation in bacterial transcription?
Which nitrogenous base in RNA pairs with adenine during bacterial transcription?
How many DNA strands are read simultaneously by RNA polymerase during bacterial transcription?
Which mechanism of transcription termination in bacteria does not require a protein factor?
At which step of bacterial transcription does the sigma (σ) factor dissociate from the RNA polymerase?
Between rho-independent and rho-dependent termination, which mechanism is also known as intrinsic termination?
