How many statements given below regarding transcription is/are correct?

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Solution

The correct option is D 2
Hogness box is the promoter region of DNA in eukaryotes where the RNA polymerase will bind and initiate transcription.

Location of promoter and terminator is always mentioned with reference to the coding strand. Terminator is always present at the 3’ end of the coding strand.

The rho factor is a protein which helps in termination of transcription, the elongation process is catalysed by the RNA polymerase itself.
RNA polymerase in prokaryotes is a large complex consisting of 4 subunits which make the core enzyme and one σ (sigma) subunit and one ρ (rho) subunit.
Thus the statements 2 and 4 are true.

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Similar questions

The paragraph below gives a description about transcription. Which is the correct description among them? (a) Enzyme involved in transcription is RNA polymerase-II, which consists of 5 polypeptides α, β, β’, σ and ω. Core enzyme recognizes promoter site while σ factor takes part in chain elongation. (b). Initiation starts with help of core enzymes of RNA polymerase enzyme. (c) Elongation is done by σ factor, which moves along the sense strand. (d) In prokaryotes, termination is done by rho factor while in eukaryotes; poly A tail is responsible for termination at 3’.

Q. Read the following statements regarding transcription.
1. RNA polymerase initiates the process of transcription with the help of sigma factor.
2. RNA polymerase also facilitates opening of the DNA double helix in prokaryotes.
3. Transcription requires primer
4. In bacteria, there are three types of RNA polymerases.
How many of the above statements are incorrect?

Q. Match the following regarding transcription:

\begin{matrix} p. Initiation & i. Ribonucleotides arepolymerised according to the code q. Elongation & ii. RNA polymerase binds to TATA box r. Termination & iii. mRNA is bound by protective molecules s. Capping & iv. RNA polymerase detaches from DNA \end{matrix}

Q. In eukaryotic transcription
(A) RNA polymerase II is responsible for the transcription of hnRNA
(B) The transcription factors recognise the promoter
(C) The core promoter determines the frequency of initiation
(D) Transcription termination by genes transcribed by RNA polymerase I are similar to rho-dependent prokaryotic termination

Choose the correct option

Q. Match the following regarding transcription:

p. Initiation i. Ribonucleotides arepolymerised according to the code

q. Elongation ii. RNA polymerase binds to TATA box

r. Termination iii. mRNA is bound by protective molecules

s. Capping iv. RNA polymerase detaches from DNA

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