En un noticiero se mencionó que le 48% de las personas es una ciudad son hombres otra forma de expresar este porcentaje es: 48 de cada 100 personas son hombres

48 de cada 10 personas son hombres

1 de cada 48 personas son hombres

100 de cada 48 personas son hombres ​

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?