You are studying five traits in Pentids, an amazonian flying beetle. You have identified each trait as belonging to separate alleles located on separate chromosomes and have categorized those alleles as A, B,C, D, and E, respectively. After years of controlled breeding experiments, you have developed your Pentid lines to the point where you can control their genotypes with certainty. You perform the following cross:

P: (AaBbCcDdEe) x (AAbbCCDdEe)
Predict the probability of recovering offspring of each of the following genotypes from
this parental cross:

AaBbCcDdEe
AAbbCCDDee
AaBbCCDdEe
AaBbccDdee

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?