| 1. | In addition it offers new facilities for storing genetic variability .
此外，它为贮存遗传变性提供新的可能。 |
| 2. | The species that make up natural ecosystems usually display a wide range of genetic variability .
构成自然生态系统的生物种，通常表现有较大范围的遗传变异性。 |
| 3. | The most extreme example of migration , however , is probably provided by a genetic variability in our sense of taste
然而散播得最广、最远的例子，可能是我们味觉的变异。 |
| 4. | Without genetic variability a species lacks the capacity to evolve and cannot adapt to changes in its environment or to new predators and new diseases
没有遗传变异，一个物种就缺乏进化的能力并且无法适应它环境的改变或新的掠食者或是新的疾病。 |
| 5. | In this paper , some approaches were reviewed for the goals of genetic control including pedigrees , pedigree validation , quantitative traits and estimating genetic variability
本文紧密围绕遗传学控制的目标，从非人灵长类动物家系建立、家系确认，数量遗传性状及遗传多态性检测等方面综述了遗传学控制的实施要素。 |
| 6. | The small size of our ancestral population may explain why there is so little genetic variability in human dna compared with that of chimpanzees and other closely related species , feldman added
斯坦福大学教授说： “这个猜测不排除非洲还存在其他智人（人类祖先） ，只是他们可能形成单独的基因群体，在现代世界人口已经很少了。 |
| 7. | A total of 145 rapd loci were obtained , of which 132 loci ( 91 . 03 % ) were polymorphic . genetic diversity quantified by shannon index varied from 1 . 50 to 2 . 44 with an average of 1 . 93 ; partition of genetic variability indicated that 69 % was distributed within , and 31 % among stocks
从40个1obp引物中选取20个用于群体遗传多样性分析，共检测出145个位点，其中132个( 91 . 03 % )显多态性;用shannon多样性指数量化的平均遗传多态度为1 |
| 8. | The antigenic and genetic variability of porcine reproductive and respirators syndrome virus ( prrsv ) isolates in china were studied by immunofluoresent monolayer assays ( 1fma ) and restriction fragment length polymorphism ( rflp ) of reverse transcription ( rt ) and polymerases chain reaction ( pcr ) amplified - prrsvorfs fragments among 8 chinese isolates
本研究通过对猪繁殖与呼吸综合征病毒( prrsv )国内分离毒株的gp3 、 gp5和n蛋白的抗原性比较及其orf5和orf7遗传变异性分析，系统研究了国内分离毒株的抗原特性和遗传学差异。 |
| 9. | The paper summarizes study progress of molecular conservation genetic from the following respects : measuring and managing genetic diversity and genetic variability within populations . identifying of evolution distinct populations , defining the appropriate geographic scale to monitor and manage genetic structure and gene flow . defining management units and the recognition of evolutionarily significant units . multiplying and conserving of in - situ conservation species and ex - situ conservation species
从遗传多样性检测、种群内遗传变异及进化分化的鉴别、就地或移地保护物种的繁殖与遗传保护、遗传结构地理差异、种群大小的遗传基础与保护等方面综述了遗传保护研究的进展。 |
| 10. | Hcmv infection can result in a wide variety of clinical manifestations , but the mechanisms remain unclear yet . host factors such as celluar or humoral immune response might play an important role . on the other hand , genetic variability among different virus strains could influence clinical manifestations of hcmv infections
Hcmv感染可引起不同的临床表现，其发病机制不清，可能与宿主的体液和细胞免疫状态有关，亦可能与不同临床分离株基因及其编码产物的多态性有关。 |
