This happens in multicellular organisms and , according to maturana and varela , maybe in the cell itself .
根据maturana和varela观察,多细胞组织中包含上述现象,单个的细胞个体中或许也是如此。
Since , in a multicellular organism , different cells need different genes to be active , such regulation is vital .
由于在多细胞有机体中,不同的细胞需要借助不同的基因以激活自身,所以这种调控至关重要。
I began wondering whether cancer might be an evolutionary throwback to the dawn of multicellular life when single cells began cooperating and forming rudimentary aggregations .
我开始怀疑,癌会不会是多细胞生物黎明期的进化返祖现象,那时单细胞开始聚积形成基本的细胞聚合体。
This tiny nematode ( it is just a millimetre long ) was the first organism to have its developmental pathway worked out cell by cell and the first multicellular one to have its genome sequenced completely .
But it was another 1.4 billion years before the first truly multicellular organism , called grypania spiralis , appears in the fossil record .
但这之后又经过了14亿年才出现了最早的多细胞生命体卷曲藻(grypania)的化石记录。
Animals - including human beings - trace their origins back to the oceans of the cambrian period more than half a billion years ago when the first multicellular organisms that fed exclusively on onther living things appeared .
Ageing is one of nature 's almost universal phenomena-virtually all multicellular creatures , if given a chance , will go through the process-but still one of its most mysterious .
What genetic change allowed multicellular animals to come into existence remains obscure . But volvox shows the sort of thing to look for : a gene that stops reproduction in single-celled creatures and has been co-opted to do a new job .