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Biology, 21.06.2019 18:30, narutoxptheninja
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, 21.06.2019 21:30, faithchambers15
What is the difference between bacterial infections and viral infections?
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Biology, 22.06.2019 10:00, breemills9953
Using meiosis, the sporophyte produces spores that are .
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Biology, 22.06.2019 13:00, am2garcia5
14) whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.
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Mathematics, 07.07.2020 23:01
Computers and Technology, 07.07.2020 23:01