核型

"In freestone types, stones separate easily from ripe flesh; in clingstone types, the flesh adheres firmly to the stone."

离核型的果实成熟后，果核易与果肉分离，黏核型则果核与果肉紧密相连。

Cases of the abnormal sex differentiated diseases in children were presented. Among them, there were 4 cases of Turner's syndrome, 1 Klinefelter's syndrome, 9 female pseudohermaphroditism, 2 male pseudohermaphroditism, and 4 true hermaphroditism.

本文报道小儿性分化异常疾病20例(包括先天性卵巢发育不全综合征4例、先天性睾丸发育不全综合征1例、女性假两性畸型9例、男性假两性畸型2例、真两性畸型4例)，对上述病例进行了细胞染色体核型分析，同时作了口腔上皮细胞性染色质、中性粒细胞核鼓植体及尿17酮类固醇、17羟类固醇的检查。

The result is: out of 187 cases of azoospermia, 77(41.18%)patients with abnormal chromosome(number and structural aberration); heteromorphic chromosome(Y chromosome polymorphisms and pericentric inversion of 9) and 46,XX sex reversal. Out of 30 cases of severe oligospermia, 4 patients with abnormal chromosome(structural aberration and 46,XX sex reversal).

发现187例无精症患者中检出异常核型77例（41.18%）（其中46，XY，t(6；14)(p21；p13)，46，XY，t(8；12)(p21；q24)为世界首报核型），主要涉及染色体异常；染色体异态（Y染色体异态和9号染色体臂间倒位）及46，XX性反转；30例严重少精症患者中检出异常核型4例（13.33%）（结构异常和46，XX性反转）。

It is indicated that the 13 species of the genus Lycoris were divided into two groups, and five species of the genus including L.rosea ﹑ L.haywardii、L.straminea、L.sprengeri and L.radiata with monotype karyotypes (1-shaped) were clustered together respectively. The basic chromosome number was x=11. The others which have two-types karyotypes (I-shaped and V-shaped ) were clustered together respectively. They were L.houdyshe lii, L.albiflora, L.chinensis,L.longituba,L.anhuiensis,L.squmigera,L.caldwellii and L.aurea . The closest relationship was between L.rosea and L.haywardii.

结果表明：石蒜属13个种明显聚为两大类，即具有单型核型结构、染色体基数为x=11的5个物种：玫瑰石蒜 L.rosea 、红蓝石蒜 L.haywardii 、稻草石蒜 L.straminea 、换锦花 L.sprengeri 和石蒜 L.radiata 聚为一类；具有两型核型结构8个物种即江苏石蒜 L.houdyshelii 、乳白石蒜 L.albiflora 、中国石蒜 L.chinensis 、长筒石蒜 L.longituba 、安徽石蒜 L.anhuiensis 、夏水仙 L.squmigera 、短蕊石蒜 L.caldwellii 和忽地笑 L.aurea 聚为一类。

More cleavage phases can be counted by FISH than G-band dyeing on the diagnosis of mosaicism kyrotype, even many intermediate stage cells can be analyzed by FISH procedure. Time was saved and more precise results can be found.

与常规染色体核型分析方法比较，FISH技术检测嵌合体核型能够观察到更多的分裂相，还可分析核膜完整染色体未分散的间期细胞，计数更多的细胞，为临床提供更准确的数据，且省时。

The biosystematic relationship between two species of Nelumbo Adans.was studied by the method of karyotype analysis,genome analysis and silver-staining of interphase neclei in Nelumbo lutea Pers.

对莲属美洲黄莲和莲的3个品种的核型分析、染色体组分析和间期核银染，研究了莲属两个种的系统关系。莲属两个种的核型大致近似，均有2对具随体染色体。

The results showed that karyotypic type of Ya01-21was 2n=104＝100m+4sm（4SAT）, Chromosome length ratio of the longest and the shortest 4.25, the average arm-ratio 1.35, belonging to 2C type of chromosome. Molecule identified combine with chromosome studied indicated that Ya01-21 was a progenies of Erianthus arundinaceum. following the law of n+n; ITS identify showed that Ya01-21 is a progenies of Erianthus arundinaceum, the somatic chromosome karyotypic type of Ya01-36 was 2n=132＝130m+2sm, Chromosome length ratio of the longest and the shortest 3.94, the average arm-ratio 1.27, belonging to 2B type of chromosome, combining the advance of characters the law of 2n+n can be resumed.

研究结果表明，崖城01－21的体细胞染色体核型公式为2n＝104＝100m+4sm（4SAT），最长与最短染色体的长度比为4.25，平均臂比1.35，染色体属2C型，分子鉴定结合细胞学研究认为其为斑茅的真实后代，其染色体遗传为n+n；崖城01－36经ITS签定为真实杂种，其体细胞染色体核型公式为2n＝132＝130m+2sm，最长与最短染色体的长度比为3.94，平均臂比1.27，染色体属2B型，结合其性状的进展，推断亲本向其传递染色体可能以2n+n的方式进行。

The karyotypes of four species in Pentatomidae were studied in male germ cells prepared on air dried slides stained with Giemsa.Karyotype analyses using specific software are made for the first time in pentatomid karyotypic study and model karyotype charts are presented.

研究了4种中国蝽科昆虫的核型和染色体的减数分裂行为，并首次在半翅目中采用核型分析软件对第一次减数分裂中期的染色体进行核型分析。

With the seeds of artificially cultivated 2-year-old A. heterophyllum as tested materials, the cells in metaphase in the seeds were made for observation, statistic and karyotype analysis, and based on the 2 main features of length ratio and arm ratio of chromosome, the karyotypes were classified according to the criteria of Stebbins.

方法］以人工栽培的2年生异叶天南星种子为试材，观察种子中的中期分裂相细胞并对其进行统计和核型分析，其核型分类根据核型中染色体的长度比和臂比2项主要特征，按Stebbins的标准进行划分。

The karyotype belonged to "2B" type of Stebbins' karyotypic symmetry, the diversification area of the relatively length was 8.02%-23.28%, the arm ratio was 1.28~∞, the length ratio of the longest to the shortest chromosome was 2.90, and the AS.K% was 66.35%.

核型属于Stebbins核型分类中的&2B&类型，染色体的相对长度变化范围为8.02%~23.28%，臂比变化范因为1.28~∞，最长与最短的染色体的长度比为2.90，核型不对称性系数As。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐