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Biology, 18.05.2021 01:00 edwinn55526
Jesslyn needs to create a project that shows geographic insulation in action in the city to make a video which of the following would make the best project ASAP
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Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
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Biology, 22.06.2019 16:30
Has magnification ability of hundreds of thousands of times
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Biology, 22.06.2019 17:20
Can yall plz me on this question im having a hard time think about it
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