Answers: 1
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
Biology, 22.06.2019 15:50, Nigward666
We all have different forms of genes from our parent(s).what are these different forms called? a. alleles b. characters c. dna d. resources
Answers: 2
Biology, 22.06.2019 16:30, legrandschool1oxa0sd
The offspring of a black cat and a white cat is a gray cat, it has the genotype bw if a black cat mates with a gray cat the chance that the offspring is white will be what percent?
Answers: 1
Why are certain diseases prevalent in our community, while others have disappeared?...
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