Which structure is responsible for storing bile? why is bile important?

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?

Hey everybody i need with a biology question. all the gametes of isogamous organisms are genetically identical. true false

When is the diploid number restored to the zygote? a.when the male and female haploid cells combine b.when the male and female diploid cells combine c.after the zygote is replicated d.when the two zygotes develop into a haploid cell