查询词典 x chromosome

Preliminary studies on chromosome band patterns and karyotypes of Amorphophallus.

魔芋染色体核型及带型的研究初报。

Karyotypes of the female and male Andrias davidianus have been observed by blood cell culture and chromosome preparation methods.

采用外周血培养和制备染色体标本的方法，分析雌雄中国大鲵的核型特征。

The data show that:(1) The chromosome number of Andrias davidianus is 2n=60.(2) The karyotype consists of macrochromosomes and microchromosomes.(3) In macrochromosomes, eight pairs are metacentric and two pairs are submetacentric.(4) Andrias davidianus has 20 pairs of microchromosomes, among which are four pairs of bi-armed chromosomes. They are No.11, No.25, No.23 and No.24. Other microchromosomes are telecentric.

结果表明：(1)中国大鲵染色体数目为2n=60；(2)染色体由大染色体和微小染色体组成，属于两型性染色体；(3)大染色体中有8对中部着丝粒染色体和2对亚中部着丝粒染色体；(4)微小染色体有20对，大多是端部着丝粒染色体，在雌性中发现了4对双臂染色体，第11、25号是亚中部着丝粒染色体，第23、24号是中部着丝粒染色体。

The research aimed to analyze the chromosome karyotype of Arisaema heterophyllum Blume.

［目的］对异叶天南星的染色体进行核型分析。

However, there was a little difference among the karyotypic configuration of all materials; Arriba had macro-chromosome, AmeriGraze 702, AmeriGraze 701 and GT13R had satellite; the evolutive degrees of the foreign introduced varieties except Archer were higher than that of Deqin wild alfalfa.

核型结构存在微小差异，爱博出现超大染色体，牧歌701、牧歌702和GT13R带有随体，引进品种除射手外，进化程度高于德钦地区紫花苜蓿。

Using a 3H-labelled 7.3kb fragment of 18S and 28S rRNA g enes as a probe and by chromosomal in situ hybridization,it was demonstrated tha t the autoradiographic silver grains to be located along entire p+ part of the m arker chromosome.

应用3H标记的7.3kb长的rRNA基因探针进行染色体原位杂交，自显影银颗粒沿整个p+区域分布，p+上的银颗粒数是正常近端着丝粒染色体短臂上银颗粒平均数的5倍。

Effect of Different Sowing Date and Densities to the Yield of Avena nuda L .Variety Huazao No.2;2. The paper analyses the chromosome karyotype of Avena nuda L .

对莜麦染色体的核型进行了分析，结果表明其染色体数为42，为六倍体，包括11对中部着丝粒染色体，9对近中部着丝粒染色体和1对近端着丝粒染色体，其中有3对染色体带有随体。

Thinopyrum intermedium,one of the relative species of common wheat,is a kind of dominant wheat germplasm resource for the resistance to stripe rust in wheat genetic improvement. With using Chinese spring phlb as recurrent parents and awnless Zhong 4(a partial chromosome of Thinopyrum intermedium)as donor parents,that is backcross selection,the offspring BC_2F_(7～9)were acquired.Cytology check and genome in situ hybridization, were used for the translocation lines and substitution lines detection.

本研究采用常规杂交并辅抗性鉴定等方法，以中国春phlb突变体为轮回亲本，利用无芒中4，转育中间偃麦草的抗条锈性，并通过细胞学和DNA原位杂交检测，鉴定和筛选普通小麦—中间偃麦草的抗条锈病异代换系或易位系。

Objective To investigate the correlation between male infertility and Y chromosome microdeletions of azoospermia factor regions.

目的：探讨Y染色体上无精子因子微缺失与男性不育的关系。

Methods Multiplex PCR was used to detect Y chromosome microdeletion in 51 azoospermia patients and 7 healthy controls.

方法采用多重PCR-凝胶电泳技术对23例原发性无精症患者、28例原发性少精症患者和7例正常生育男性对照进行Y染色体微缺失检测。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。