Question

Based on the figure, at which level of gene regulation does attenuation occur? alteration of structure mrna processing rna stability and translation posttranslational control transcription. 1. Posttranslational control

2. RNA stability and translation
3. mRNA processing
4. Transcription
5. Alteration of structure

Answer 1

Attenuation occurs at the level of transcription in gene regulation.

Step-by-step explanation:

Attenuation occurs at the level of transcription in gene regulation. Attenuation is a regulatory mechanism that occurs in bacterial operons, where the formation of secondary stem-loop structures within the mRNA determines whether or not transcription will be completed and whether the mRNA will be used for translation. In attenuation, the formation of a terminator stem-loop leads to premature termination of transcription, while the formation of an antiterminator stem-loop allows transcription to proceed.

Answer 2

Attenuation occurs at the level of transcription.

What is attenuation and when does it occur

Attenuation is a regulatory mechanism that occurs during transcription in certain operons (clusters of genes).

It involves the premature termination of transcription, typically in prokaryotic organisms, in response to specific conditions, especially related to the availability of amino acids.

This process involves the formation of specific secondary structures within the mRNA transcript itself, particularly in the leader sequence, which is located before the structural genes of the operon.