Answer:
The expression of the lac structural genes is LOW when lactose is absent from the culture medium and is HIGH when lactose is added, because lactose binds to the lac REPRESSOR and inactivates it.
Explanation:
Lac operon is expressed only when lactose sugar is available to the bacteria. When lactose is not present, the repressor protein binds to the operator sequence and does not allow RNA polymerase to transcribe the genes. Therefore, the expression of the lac operon is prevented in the absence of lactose. The presence of lactose allows its expression. Under these conditions, allolactose binds to the repressor protein rendering it not able to bind to the operator sequence.
Aquellos q mueren por tan
Erosion is the scientific and environmental condition in which the surface layer of the soil gets eroded. No, lakes do not grow larger due to erosion.
<h3>What is the effect of erosion?</h3>
Erosion is the abrasion process in which the top of the surface layer of the dissolved minerals, rock and soil gets eroded by the strong force of the wind and water.
Lakes or the other water bodies do not get grows larger due to erosion but gets affected by the deposition and accumulation of the soil and other materials that got eroded from the land surfaces to the sea. It can affect aquatic life and pollute the water.
Therefore, the statement is false.
Learn more about erosion here:
brainly.com/question/10109522
I'm sure there are many processes that add to diversity, but the ones that stand out to me would be meosis, natural selection, mutation, random mating.
The answer is carbohydrate. The carbohydrate is consists of monosaccharides which includes sugar(glucose). So the carbohydrate will be a best dietician monitor.