What is attenuation in gene regulation?
Transcriptional attenuation is a regulatory mechanism that causes premature termination of transcription under certain conditions, thereby preventing the expression of the mRNA required for expression of the corresponding gene products.
What is the role of attenuation?
Attenuation is an important factor limiting the transmission of a digital signal across large distances. Thus, much research has gone into both limiting the attenuation and maximizing the amplification of the optical signal.
What does attenuated mean in biology?
Listen to pronunciation. (uh-TEN-yoo-way-ted) Weakened or thinned. Attenuated strains of disease-causing bacteria and viruses are often used as vaccines.
What is the role of attenuation in operon?
Attenuation is a regulatory mechanism used in bacterial operons to ensure proper transcription and translation. In bacteria, transcription and translation are capable of proceeding simultaneously.
What is attenuator region in DNA?
Attenuation involves a provisional stop signal (attenuator), located in the DNA segment that corresponds to the leader sequence of mRNA. During attenuation, the ribosome becomes stalled (delayed) in the attenuator region in the mRNA leader.
What do you mean by attenuation?
Attenuation is the loss of signal strength in networking cables or connections. This typically is measured in decibels (dB) or voltage and can occur due to a variety of factors. It may cause signals to become distorted or indiscernible.
How do you reduce attenuation?
How Can Attenuation Be Prevented or Improved?
- Improving Cables. Cables can come in many forms, including copper, fiber, satellite and more.
- Shortening Distance. A network administrator is not only responsible for networking the environment, but to maintain the best efficiencies possible.
- Including Amplifiers or Repeaters.
What is attenuator in microbiology?
Attenuation is a regulatory feature found throughout Archaea and Bacteria causing premature termination of transcription. Attenuators are 5′-cis acting regulatory regions which fold into one of two alternative RNA structures which determine the success of transcription.
How does attenuation stop transcription?
Transcriptional-attenuation is characterized by the presence of an attenuator within the DNA sequence that results in formation of mRNA-stem loops that prevent further transcription from occurring. The non-functional RNA produced prevents proper transcription.
What do you mean by attenuators?
An attenuator is an electronic device that reduces the power of a signal without appreciably distorting its waveform.
What is another name for attenuation?
In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for attenuation, like: debilitation, strong, impoverishment, devitalization, enfeeblement, fading, amplitude, impedance, reflectance, far field and dispersion.
What is attenuation in communication system?
Attenuation is a term that refers to reducing the strength of the signal. Attenuation can occur in any type of signal, whether. digital or analog. It also occurs due to the noise in the medium. It is also referred to as loss, Attenuation is a result of transmitting a signal over a long distance.
Where attenuators are mainly used?
Attenuators are generally used in radio, communication and transmission line applications to weaken a stronger signal. Resistive attenuators are used as volume controls in broadcasting stations and also can be used for matching circuits of different resistive impedances.