1. The bud shown in the diagram below was produced by asexual reproduction. Which process is responsible for the formation of the bud?

2 Asexual reproduction differs from sexual reproduction in that, in asexual reproduction..

(a) new organisms are usually genetically identical to the parent

(b) the reproductive cycle involves the production of games

(c) nuclei of sex cells fuse to form a zygote

(d) offspring show much genetic variation

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?