遗传的

Just as Tay-Sachs has almost been wiped out in the decades since Ashkenazi Jews have tested themselves for the gene, a universal carrier screen, combined with preimplantation genetic diagnosis for carrier couples who want biological children, will eliminate a hundred others.

正如在Ashkenazi犹太人对自己进行基因试验后，Tay-Sachs疾病在数十年间几乎就被全部消灭一样，一种普遍的携带者筛查并结合那些希望获得亲生子女的夫妇们进行植入前遗传诊断将消灭众多其它遗传疾病。

However, the results also showed that these drought-resistant varieties have quite different genetic diversity, which can provide a theoretical basis for using these variety resources in wheat or triticale's draught-resistant breeding.

但反过来可以说明这些抗旱性强的品种其遗传差异较大，遗传变异丰富，为在小麦或小黑麦的抗旱育种中更好地利用这些品种资源提供了依据。

Optimal vertical alignment analysis was made and some key problems during the GAs application were resolved primarily.

针对纵断面优化问题，本文对遗传算法做了进一步的改进，初步解决了遗传算法在应用中的关键问题。

Focusing on the disadvantages in the BP neural network such as low convergence rate,easily falling into local minimum point and weak global search capability,a new method that used GA to train BP neural networks to gain best weights was presented.

针对传统的BP算法存在收敛速度比较慢、容易陷入局部极小值以及全局搜索能力弱等缺陷，提出了神经网络与遗传算法。结合的方法，采用遗传算法。练BP神经网络，优化网络权值。

This paper investigats the genetic diversity of the wolf spider (Pardosa pseudoannulata BSenberget et strand 1906) by using the SRAP reaction system and analyzes the effect which ecological factor carried on genetic diversity.

利用SRAP标记对不同地理区域的拟环纹豹蛛(Pardosa pseudoannulata BSenberg et strand 1906)种群遗传多样性进行研究，分析了不同生态因子对拟环纹豹蛛种群遗传多样性的影响。

However, the population genetic structure of Alectoris species using the microsatellite DNA data was very scarcely.

本文利用微卫星DNA标记，研究它们的种群遗传结构。目的在于(1)比较两种石鸡各种种群间的遗传差异，重建系统发育关系。

The genetic variation among the natural populations of ginkgo revealed by Nei"s analysis , Shannon"s information index analysis and analysis of Molecular Variance ISSR :Gst=0.1955,(= 0.1903,φST= 17.63%;RAPD:Gst=0.2882,= 0.2949,φST=36.69% was greater than other kinds of anemophilous plants. The genetic differentiation among populations might be caused by human selective pressures and barriers of geography.

3Neis遗传多样性分析、香农信息指数分析和AMOVA分析所揭示的银杏居群遗传分化水平ISSR ：Gst=0.1955，= 0.1903，φST= 17.63%；RAPD：Gst=0.2882，= 0.2949，φST=36.69%，高于一般风媒植物，可能是地理阻隔和人为选择造成的。

The length of the band was 0.33~3.0kb.The D value between different breeds of Antheraea pernyi was 0.066~0.1659.The D value was used to construct a dendrogram by UPGMA.

不同柞蚕品种间的遗传差异较小，遗传距离在0.066～0.1659之间，根据D值，由UPGMA聚类分析软件绘制了它们的分子进化树。

The pattern of inheritance is autosomal dominant, but the underlying genetic defect is poorly understood.

该模式的继承是常染色体显性遗传，但潜在的遗传缺陷是了解甚少。

Using 3-year-old culms of 8 provenances of Bambusa chungii from Guangdong, Guangxi and Hainan Provinces, the indexes of wood properties, such as fiber dimensions and chemical composition were investigated and analyzed by the methods of Analysis of variance and correlation coefficient to reveal the geographic genetic variation situation.

以广东、广西和海南3个省8个产地的粉单竹群体3年生竹秆为研究材料，对其纤维形态、化学成分等纸浆材性指标进行测定，采用方差分析和相关分析方法对上述竹材性状进行遗传变异分析，以揭示粉单竹材性的地理遗传变异规律。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。