interbreeding

1. Prolonged interbreeding in any species can eventually lead to serious birth defects.
   长期来看，任何物种间的异血缘繁殖终会导致严重的先天缺陷。
2. The discovery team urged caution on the interbreeding issue, but noted anatomical features of the cranium suggesting that some human-Neanderthal mixture had presumably occurred before any encounters in Europe and Asia.
   发掘小组的科学家强调在交配假说的问题上需要慎重，但指出，头盖骨的解剖学特征表明，一些智人与尼安德特人混合的迹象可能在这两种人在欧洲和亚洲相遇前，就已经出现了。
3. Every goldfish today, despite their varied looks, are descended from the wild gibel carp, and interbreeding will result in fertile fry since they are genetically identical.
   今天所有的金鱼，除了长相不一，都是由野生银鲫进化而来，因为它们基因相同，杂交会产生很多鱼苗。
4. However, harmful effects are more common in groups with a history of interbreeding over several generations.
   但是，恶性先天缺陷常见于家族多代异血缘交配。
5. He defines the local population or deme as the group of potentially interbreeding individuals at a given locality.
   他说地区的种群或居群是某一地区具有潜在杂交能力的个体的集群。
6. The common origin of dogs indicated that the dog breeds were not generated by wolf domestication in different geography or interbreeding between wolves and dogs.
   这也就否定了：不同品种的家犬是由不同地区的狼驯化而来，或者是与狼进行杂交形成的假说。

noun

1. reproduction by parents of different races (especially by white and non-white persons)

   Synonym:    miscegenationcrossbreeding

2. (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids

   Synonym:    hybridizationhybridisationcrossbreedingcrossingcrosshybridizing