identical twins

名词 identical twin:

1. either of two twins developed from the same fertilized ovum (having the same genetic material)
   同义词：identical twin, monozygotic twin, monozygous twin

1. The presence of a given genetic trait in only one member of a pair of identical twins.
   不和，不一致在一对同卵双胞胎中，某一特定基因特征只表现两者中的一个身上