What Dr Nedelcu and Dr Michod did was to look for an antecedent of regA in a single-celled creature, in order to find out what its job was.

Nedeclu博士和Michod博士在单细胞生物中寻找regA的antecedent，从而了解它的作用。

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However, as they report in Molecular Biology and Evolution, Aurora Nedelcu of the University of New Brunswick and Richard Michod of the University of Arizona think they have worked out what happened.

但是正如新布伦瑞克大学的Aurora Nedelcu和亚里桑那大学的Richard Michod在“分子生物学与进化”中所说，他们认为他们已研究出这一过程。

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What Dr Nedelcu and Dr Michod did was to look for an antecedent of regA in a single-celled creature, in order to find out what its job was.

ECONOMIST: How to become multicellular