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.
I’m pretty sure it’s B because they need to be able to replace other cells when they die off but its also to maintain a healthy size so if they are growing too much they may need to split
Searched it up on Google. It says Symbiosis
Answer:
e. Quantity of oxygen consumed when the food is burned
Explanation:
The quantity of oxygen that's used up is known as an indirect measure for amount of energy that's released from the food you burn and Bomb calorimeters may be used to estimate the amount of energy in food.
Well, it's almost impossible to give you the correct answer as you haven't attache the picture which shows the needed data. I bet that you have the same question as the most of students that's why I will try to help you. If you had to share this pic, the answer should be <span>Uterus. Hope Iguessed right!</span>
