| 1. | Negative assorative mating occurs when dissimilar phenotypes breed together , leading to outbreeding 反向选型交配则发生在不相似的表型在一起生育时,可以导致异系交配。 |
| 2. | Changes to cancer genes endow the cell with one or more superpowers , allowing it to outbreed its neighbors 癌症基因上头出现的变化,赋予了细胞一或多种的超能力,使其比邻近细胞长得更快。 |
| 3. | Selfing heterozygotes halves the heterozygosity , and thus outbreeding maintains heterozygosity and produces a more adaptable population 自交杂合子有一半杂合性,因此远系繁殖可以产生适应能量更强的种群。 |
| 4. | There is also a general lowering of vigor in inbred stock ( inbreeding depression ) , which is especially pronounced amongst normally outbreeding populations 而杂合型出现的频率降低,因而降低了种群基因的潜在可变性。 |
| 5. | At the same time , however , the propensity to choose someone with slightly similar genes can also avoid the problem of outbreeding - the mixing of genes that are too different 然而,与此同时,选择稍微相似基因的人为配偶也能避免远系繁殖_ _ _差异太大的基因组合问题。 |
| 6. | Iop was significantly decreased by up to 1 . 8 mmhg ( po . 002 ) in age / litter matched mice lacking aqp1 and / or aqp4 in outbred gdi and inbred c57 / w6 genetic backgrounds , and aqueous fluid production was decreased by up to 0 . 9 pl / hr ( p < 0 . 05 ) 远交系cdi鼠水通道蛋白( aqpi和或aqp4 )基因敲除后,在鼠龄和体重与野生鼠相同情况下,眼内压降低了1 sinlnhg ( p 0 002 ) ,房水生成减少了0 |
| 7. | The optimal degree of outbreeding remained the same in every 25 - year generation since 1800 , although the overall number of children from marriages of every degree of relatedness did drop gradually over time ? an observation that accounts for part of iceland ' s demographic transition , and which probably has a social explanation 从19世纪开始,每25年一代的远交的最优化程度一直没变,尽管每一种亲缘程度的婚姻的子女总数量在随时间逐步下降冰岛人口结构转化显而易见的一部分原因,另一部分解释来自社会学角度。 |
| 8. | These observations show that reprogramming is easier in interspecific embryos reconstructed with es cells than that reconstructed with somatic cells , and that es cells have the higher ability to direct the reconstructed embryo development normally than fibroblast cells . oocytes were reconstructed with outbreeding kunming albino mouse es cells and enucleated rabbit oocytes , and the effects of the passages of es cells and 6 - dmap on the development of interspecific reconstructed oocytes were analyzed . the interspecific reconstructed es - rabbit oocytes were activated either by combined two set electric pulses and 6 - dmap or by two set electric pulses 以上结果显示, 6 dmap能增加胚胎干细胞异种重构卵的卵裂率,对重构卵囊胚的发育率影响不大;高培养代数和低培养代数的胚胎干细胞用于异种核移植不影响异种重构卵的卵裂率和囊胚发育率;用胚胎干细胞作为供核细胞;比体细胞作为供核细胞所构建的异种重构胚更容易进行重编程,并且胚胎于细胞指导异种克隆胚胎正常发育的能力强于体细胞。 |