In bacteria, transcription and translation can occur simultaneously in
the cytoplasm of the cell
, whereas in eukaryotes transcription
Where does transcription occur in bacteria quizlet?
in prokaryotes transcription and translation both occur in
the cytoplasm
. in eukaryotes translation occurs in the ribosomes of the rough ER and transcription occurs in the nucleus.
Where does Where does transcription occur?
In eukaryotes, transcription and translation take place in different cellular compartments:
transcription takes place in the membrane-bounded nucleus
, whereas translation takes place outside the nucleus in the cytoplasm. In prokaryotes, the two processes are closely coupled (Figure 28.15).
Where does transcription and translation occur in bacteria?
(a) In prokaryotes, the processes of transcription and translation occur simultaneously
in the cytoplasm
, allowing for a rapid cellular response to an environmental cue.
Where does prokaryotic perform transcription occur?
Prokaryotic transcription occurs
in the cytoplasm alongside
translation. Prokaryotic transcription and translation can occur simultaneously. This is impossible in eukaryotes, where transcription occurs in a membrane-bound nucleus while translation occurs outside the nucleus in the cytoplasm.
What are the major differences between bacterial and eukaryotic transcription?
There is no such structure seen in prokaryotes. Another main difference between the two is that
transcription and translation occurs simultaneously in prokaryotes
and in eukaryotes the RNA is first transcribed in the nucleus and then translated in the cytoplasm.
How does termination of transcription occur in bacteria?
Bacterial transcription termination, described mostly for Escherichia coli, occurs in three recognized ways:
intrinsic termination, an activity only of the core RNAP enzyme and transcript sequences that encode an RNA hairpin and terminal uridine-rich segment
; termination by the enzyme Rho, an ATP-dependent RNA …
What are the 4 steps of transcription?
- Initiation. The DNA molecule unwinds and separates to form a small open complex.
- Elongation. RNA polymerase moves along the template strand, synthesising an mRNA molecule.
- Termination. In prokaryotes there are two ways in which transcription is terminated.
- Processing.
What are the 5 steps of transcription?
- of 05. Pre-Initiation. Atomic Imagery / Getty Images. …
- of 05. Initiation. Forluvoft / Wikimedia Commons / Public Domain. …
- of 05. Promoter Clearance. …
- of 05. Elongation. …
- of 05. Termination.
What are the 3 main steps of transcription?
It involves copying a gene’s DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template). Transcription has three stages:
initiation, elongation, and termination
.
What are the steps of transcription in prokaryotes?
- Initiation: closed complex formation. Open complex fromation. Tertiary complex formation.
- Elongation.
- Termination:
What is the end result of transcription?
The outcome of Transcription is
a complimentary strand of messengerRNA (mRNA)
.
Is transcription or translation faster?
If
translation was faster than transcription
, it would cause the ribosome to “collide” with the RNA polymerase in prokaryotes where the two processes can happen concurrently. Such co-transcriptional translation has become textbook material through images such as Figure 1.
What stops transcription in prokaryotes?
Transcription termination in prokaryotes can be
rho-independent (intrinsic terminators exist in the RNA polymerase)
and rho-dependent, i.e., the RNA polymerase requires the cofactor rho for termination of transcription. The terminator regions in various systems have similar structures.
What describes the termination of transcription in prokaryotes?
Termination in Prokaryotes
Near the end of the gene,
the polymerase encounters a run of G nucleotides on the DNA template and it stalls
. As a result, the rho protein collides with the polymerase. The interaction with rho releases the mRNA from the transcription bubble.
Where and how does transcription start in a prokaryotic cell?
In prokaryotes, which lack membrane-bound nuclei and other organelles,
transcription occurs in the cytoplasm of the cell
.
