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Biology, 21.06.2019 22:00, rickyop8010
What is thought to have caused the mass extinction at the end of the cretaceous period?
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Biology, 22.06.2019 06:30, stupidsmoke4272
Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?
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Biology, 22.06.2019 13:00, mimivenga
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?
Answers: 1
Describe how plants and animals each contribute to the survival of the other gizmo answers...
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