The average number of alleles per locus ( a ) , percentage polymorphic loci ( p ) , observed heterozygosity ( ho ) and wright ' s fixation index ( f ) is 2 . 2 , 77 . 9 , 0 . 433 , - 0 . 138 , respectively . the species also had higher variation than that of the other woody angiosperms widespread . moreover , e . mollis has higher population genetic variation than that of 26 long - lived woody endemics with narrow geographic distributions Biosys - 2软件计算得知，在翅果油树种群中，每个位点等位基因的平均数a = 2 . 2 ，多态位点百分率p = 77 . 9 ，遗传多样性he = 0 . 375 ，遗传多样性水平明显高于蜂媒植物，而且也比其它的广布木本被子植物的遗传多样性水平为高。
Systematic cluster analysis was carried out on hu sheep in china in comparison with the same data of 9 asia sheep populations and 5 european sheep ( breeds in japan ) populations . 15 populations can be clustered in terms of gene frequency of 10 loci and 33 allele in blood enzyme and other protein variations 摘要以中国湖羊为研究对象，搜集国内外9个亚洲绵羊群体和5个在日本的欧洲绵羊群体的相同资料作为对照，根据控制血液酶和其他蛋白质变异的10个基因座位共计33个等位基因的频率，进行系统聚类分析。
To the guangxi hanzu , the most allele is hve32 in the patients with chd or aci . but it is hve34 , hve36 , hve38 in the controls . the relative frequency of big allele ( = ^ hve38 ) in controls is higher than in patients of two native populations , but they have n ' t significant difference between the zhuangzu controls and hanzu controls of guangxi in xbal , ecori and 3xvntr allele distribute frequency 05人结论：广西地区壮、汉两族人群之间在xbal和ecdi位点及3 ’端箍因分布没有显著区别；广西壮族人群冠心病、脑梗塞的发病与xbal 、 ’ ecori和3 ’端vntr等位基因的分布没有明显的关联；广西汉族人群冠心病、脑梗塞的发病与ecori位点的基因突变和3vntr等位基因的分布有一定的联系，但与xbal位点的基因突变没有显著的关联。
Linkage analysis localizes a gene solely on the basis of its location , without regard to its biochemical function . transmission disequilibrium test ( tdt ) is one of the methods being used . the basic thought of tdt is : if the marker locus is in the neighborhood of the disease locus , then a specific marker allele associated with the disease allele will have higher frequency among diseased individuals compared to normal individuals 该检验统计量的基本思想是：若标识基因座在疾病基因座附近，那么与疾病等位基因相关联的标识等位基因将以更高的频率出现在生病的个体中(相对正常体) ，这个关联的标识等位基因相对于另一个标识等位基因的不平衡传递表明了标识基因座和疾病基因座之间存在连锁。
We summed up and analyzed the polymorphisms of the fut2 gene of three groups in the world with references to other published data . further discussion was made for the hypotheses of origin and generation of special point mutations of fut2 gene . master candidate : zhang ying major : microbiology and immunology supervisor : prof 综合目前已发表文献报道的其它地区人群fut2等位基因的分布状况，我们对世界三大人群fut2基因的多态性进行了整理分析，并对fut2基因特定点突变的可能的起源及形成进行了讨论。
