after {this|these formalities}, the cells undergo subsequent divisions until reaching the blastocyst stage, where {they|boys|toddlers} {lose|lose} {their|own} totipotence and acquire a pluripotent identity, {that is|in which} the cells are able to differentiate {only|only} into {any|each the germ layer of the embryo (ectoderm, mesoderm #file_links[“C:\Users\Admin\Desktop\file\gsa+en+10k20k50kGeorgiy2504252P2URLBB.txt”,1,N], and endoderm).