The ara operon is an inducible operon that controls the production of the sugar arabinose. when arabinose is present in a bacterium it binds to the protein arac, and the complex binds to the initiator site to promote transcription. in this scenario, arac is a(n)
activator
inducer
repressor
operator
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Biology, 21.06.2019 12:40
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You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.
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Biology, 22.06.2019 04:00
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Biology, 22.06.2019 09:30
The ruiz family is exchanging euros for us dollars. the exchange rate is 1 euro equals 1.35261 usd. since the ruiz family knows that usd are stated to the nearest hundredth of a dollar, they used the conversion ratio
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The ara operon is an inducible operon that controls the production of the sugar arabinose. when arab...
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