Answer:
The ability of sequences within the leader mRNA to pair with one another and form stem-lopp structures
Explanation:
A form of feedback regulation controls the trp operon by regulating transcription termination, a mechanism referred to as Attenuation.
-In the presence of high concentrations of tryptophan, RNA polymerase ceases transcription shortly after initiation in a region called the leader sequence.
-If the concentration of tryptophan is low, transcription does not terminate until the entire operon is transcribed. The mechanism of attenuation links alternative RNA secondary structures to transcription termination.
-Immediately after transcription, RNA from the leader region folds into one of two alternative secondary structures.
-One of these structures is a transcription termination signal that stops RNA polymerase from continuing to the end of the operon.
-The alternative structure does not contain a transcription termination signal and allows transcription of a single mRNA that encodes all the structural genes.
-The decision as to which of the two alternative RNA structures formed is regulated by the concentration of tryptophan.
A warning sign. cross road ahead. Slow down look carefully in all directions
Complete question:
Jared was investigating a drug cartel and ate a meal with one of the suspects. After the meal, he had trouble breathing and felt weak and dizzy. Jared may have been poisoned. He is being taken to the CIA hospital for treatment. The symptoms are muscular weakness, shortness of breath, dizziness. Explain how the poison caused Jared’s symptoms (e.g., muscle weakness).
Answer:
The poison blocked the cellular respiratory process, interrupting energy (ATP) production, and oxygen transport, affecting different organs and causing all the symptoms that Jared showed.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Dwarfs: B
Giants: C
Main sequence stars: D
Supergiants: A
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