The purpose of this study was to determine whether nonretarded children would imitate the behavior of retarded children who were more competent in an experimental task and to determine whether this imitation would generalize to the selection of the retarded children as task partners in another situation. Each nonretarded observer was allowed to imitate the task behavior of an EMR model when the...

Germ cells are the only cell type in the body that can transfer genetic information to the next generation. Germline-competent stem cells can self-renew and contribute to the germ cell lineage giving rise to pluripotent stem cells under specific conditions. Hence far, studies on germline-competent stem cells have contributed to the generation of avian model systems and the conservation of avian...