Which among the following is a transcription initiation factor in bacteria?

σ

(sigma)

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ρ

(rho)

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ϵ

(epsilon)

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δ

(delta)

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Solution

The correct option is A $σ$ (sigma)
$σ$ is an initiation factor required to initiate transcription in bacteria. It is also called specificity factor.
$ρ$ is the transcription termination factor.

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Similar questions

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

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. The transcription initiation factor associated with the RNA polymerase holoenzyme in prokaryotes is

The factor responsible for initiations of transcription in bacteria is

Q. Transcription requires
A. DNA template
B. NTPs (nucleoside triphosphates)
C. RNA polymerase
D. Sigma & Rho factors

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Which among the following is a transcription initiation factor in bacteria?

The correct option is A σ (sigma)σ is an initiation factor required to initiate transcription in bacteria. It is also called specificity factor. ρ is the transcription termination factor.

The correct option is A $σ$ (sigma)
$σ$ is an initiation factor required to initiate transcription in bacteria. It is also called specificity factor.
$ρ$ is the transcription termination factor.