Answer:
Mg is able to give off two of its electrons to other molecule, not four. ATP, in this case is the aceptor of those electrons
Two correct answers are:
1) Hexokinase cannot bind active ATP when it is not complexed with Mg2+
2) Mg2+ makes the terminal phosphorus atom of ATP more accessible to nucleophilic attack by a glucose-OH group
Explanation:
As Mg occurs naturally as ion Mg++, it is able to give off only two of its electrons to other molecule, then it is possible for ATP to receive two electrons of Mg, forming MgATP2-
The hexokinase reaction, here cited, corresponds to the glucose phosphorylation of its sixth carbon to produce glucose-6-P, which is a glycolysis intermediate. In this way glucose is activated (ATP is initially invested to energize glucose). Later on, Glyceraldehide-3-P is produced, and finally converted to pyruvate, NADH2 and ATP
D would be the correct answer hope this helps !!!
<span>These are all the classic symptoms of sleep apnea. The next logical step would be to have the patient participate in an overnight sleep study. If sleep apnea is confirmed, the doctor and patient should consider the use of a CPAP machine for treatment. In certain cases, surgical intervention can also achieve results, although CPAP treatment is usually performed first.</span>
Answer:
Both aneuploidies and trisomies are the result of nondisjunction of the homologous chromosomes during meiosis. The error in the mechanism of chromosome segregation produces two daughter cells, one of them with two homologous chromosomes and the other one without
In certain areas of Africa, the sickle cell mutation has a high frequency because it confers an adaptive advantage against malaria which is endemic to this region.
<h3>What is natural selection?</h3>
Natural selection is a mechanism that drives evolution in natural populations, which in case we are observing stabilizing selection because it acts to stabilize the frequency of different alleles.
In certain regions in the African continent, the sickle cell mutation exhibits a high frequency since it is able to confer resistance against malaria which is an endemic disease located in this region.
Therefore, with this data, we can see that stabilizing selection acts to increase the frequency of the sickle cell mutation, which is harmful in regions where malaria is not endemic but increased in certain parts of Africa due to the incidence of malaria, thereby being an adaptive trait for these geographic areas.
Learn more about stabilizing selection here:
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