| 1. | Twins often show great resemblance .
双生子常极相似。 |
| 2. | Monozygotic twins, on the other hand, arise from the same fertilized egg .
同卵双生子则是由同一个受精卵发育而成的。 |
| 3. | Dizygotic twins arise from two separate eggs fertilized by two spermatozoa .
异卵双生子是由两个精子与两个不同的卵受精而成长起来的。 |
| 4. | A twin study of dental crowding on permanent dentition
恒牙列拥挤的双生子研究 |
| 5. | A twin study of personality disorder heritability
人格障碍遗传度双生子研究 |
| 6. | Analysis of anemia status among twins aged
双生子儿童贫血状况分析 |
| 7. | Dante : and we ' re supposed to be twins
但丁：我们注定是双生子。 |
| 8. | Genetic analysis of gonadotropin - gonadal axis in boys : a twin study
性腺轴激素遗传效应的双生子分析 |
| 9. | The twins look so much alike that only their parents know them apart
这对双生子实在太相像了，只有他们的父母才能区别开来。 |
| 10. | The heritability analysis of the metabolic syndrome related characters in twins
双生子人群的代谢综合征相关指标的遗传度分析 |
