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Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
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Biology, 22.06.2019 00:00
How does a lytic infection differ from a lysogenic infection?
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Biology, 22.06.2019 04:30
What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an
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Biology, 22.06.2019 12:30
This is collection of data made by comparing objects in standard units. in science, the units are metric.
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Is cf more prevalent in some populations verse others?...
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