ancestor form 中文意思是什麼
ancestor form
解釋
發端類型-
However, amphioxus ubf80 also showed some unique characters such as its amino acid residues at sites 39, 54, 63 and 74 in the cep. it appears that amphioxus not only represents an organism tr ansitional from invertebrates to vertebrates in phylogeny but also a possible diverged form radiated from the chordate ancestor at early chordate evolution. the possibility that some mutations in ub genes have taken place in different lines early at the divergence of plants and animals is also discussed
發現文昌魚a二phi屍rxv基因是具有線粒體和過氧化物酶體信號特徵（ mitochondrialandperoxisomalsortingsignals ）的抗氧化物酶基因;通過序列比對，我們把屍rxv歸為l一cys和2一cys之外的3一cys類，從而把屍rx基因家族的兩種分類方法統一了起來。 -
Haploid organisms have one genome, diploid organisms have two homologous sets, polyploid organisms have many sets sometimes form the same ancestor ( autopolyploids ) and sometimes from different ancestor ( allopolyploids )
單倍體生物有一個基因組；二倍體生物有兩個同源的基因組；多倍體生物有多個基因組，它們可能源於同一祖先（同源多倍體） ，也可源自不同的祖先（異源多倍體） 。
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