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Andrews [41]
4 years ago
12

Explain the evolutionary advantage of having multiple operons for various sugars

Biology
1 answer:
Nadya [2.5K]4 years ago
6 0
Operons are gene regulatory mechanisms that involve promoting and repressing genes that are involved in the metabolism of organic substances (i.e. sugars). Living organisms have the innate ability to metabolize glucose as the main source of energy. Although, in the absence of glucose, the organism must "learn" to use sugars other than glucose (such as lactose) in order to survive. 

For instance, in the <em>lac </em>operon:
In the absence of glucose, various regulatory proteins promote the transcription of the gene related to the metabolism of lactose. This will ultimately lead to the production of the enzyme beta lactosidase which will enable the organism to use lactose as energy in the absence of glucose. This will therefore increase the chances of the organism for survival and will be naturally selected for evolution.
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Kryger [21]

Answer:

It's not C or D because the Crust is actaully around 36km thick so that means it's eitehr A or B and the crust is mostly made form granite so Ima say B is the answer

8 0
3 years ago
Which of the following correctly demonstrates how an anatomist and a physiologist might describe components of the eye?
stiks02 [169]
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3 0
3 years ago
Nelly was reading about ecological pesticides. She found a website that said that skeletons of some organisms settle as sediment
aleksley [76]

Answer:

Diatoms

Explanation:

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When diatoms die, their shell or skeleton that is composed of silica, do not decay, but settle at the bottom of oceans as sediments to form what is often referred to as diatomaceous earth. It is this diatomaceous earth deposit that is then converted to diatomite powder, which is used as pesticides against insects such as ants, cockroaches, bedbugs and some other pests.

5 0
3 years ago
What is the replication cycle of a virus
Dafna11 [192]
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6 0
4 years ago
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What is an unconformity? A. evidence of past life B. all the time passed since the origin of Earth C. a division of strata that
laila [671]
The answer for this question would be choice D) An erosional surface representing a gap of time in the geological record or the fourth option.
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4 years ago
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