Objectiveto establish durable and stable mixed chimeras and explore its effect on prevention and cure of acute graft-versus-host disease after xenogeneic bone marrow transplantation .
Dr. lanza predicts this could happen in a place where the rules about creating chimeras and human clones are a lot more lax than in the u. s.
兰萨预测,在有关创造嵌合体和人类克隆的法规比美国宽松得多的地方,这种事情可能发生。
Until now , rodents have been the primary creatures used to make chimeras , a lab animal produced by combining two or more fertilised eggs or early embryos together .
Our chimeras are the things which the most resemble us .
我们的幻想是我们最逼真的写照。
According to received biological wisdom , any chimeras that result are meant to be evolutionary dead ends .
根据人们已经接受到的生物学知识,任何杂交所产生的混合生命意味着它们已经达了进化的死角。
Over this period cells gradually came to live free from bodies , then experiments conjured them bit by bit into freezable , mass-produced objects and eventually into chimeras with parts from more than one species .
Chimeras are most closely related to sharks , although their evolutionary lineage branched off from sharks nearly 400 million years ago , and they have remained an isolated group ever since .