查询词典 chromosome

Through chromosome identification, the chromosome numbers of diploid and tetraploid were 16 and 32, respectirely.

染色体鉴定表明，二倍体染色体数为2n=2x=16，四倍体染色体数为2n=4x=32。

We studied the optimum medium and hormone combination of callus induction from cotyledons, subculture of callus, shoot regeneration from callus, shoot-extension induction, root induction and identified the chromosome number of the plantlet. The results showed that: MS+2,4-D 2.0mg/L+KT 0.5mg/L, MS＋2,4-D 2.5mg/L＋KT 0.5mg/L, MS+2,4-D 0+KT 1.0mg/L, MS+KT 0.5 mg/L and basal MS medium. One plantlet among twenty two was determined as a tetraploidy based on the plant morphology, observation of the leaf stoma and chromosome number of the root, other two plantlets represented morphological variation.

结果表明，诱导章丘大葱子叶产生愈伤组织、愈伤组织的继代培养、愈伤组织芽分化、芽点的伸长及诱导生根的最佳培养基及激素配比分别为：MS+2，4-D 2.0mg/L+KT 0.5mg/L、MS＋2，4-D 2.5mg/L＋KT 0.5mg/L、MS+2，4-D 0+KT 1.0mg/L、MS+KT 0.5mg/L和MS基本培养基；试管苗经驯化移栽后，共有22株成活，成活率为92%，对成活的再生植株进行形态学、叶片气孔及根尖染色体鉴定表明，共有3株发生变异，其中2株为外部形态上的变异，而另一株为染色体的加倍变异。

The result showed that the plant of Maicao No. 9 was tall, with good fecundity, fully filled grain and vigorous growth. The chromosome number of the root cells was 2n=56, through the observation of pollen mother cells meiosis, there were a certain amount of univalents, ring bivalents and bar bivalents in PMCM. Different numbers of lagging chromosomes, chromosome bridges and micronucleus were found in anaphaseⅠ, anaphaseⅡ and tetraspore.

结果表明：麦草9号植株高大，结实性较好，籽粒饱满，生长旺盛；根尖细胞染色体数目为2n=56，对其进行花粉母细胞减数分裂观察，中期Ⅰ具有一定数量的单价体、环状二价体、棒状二价体；后期Ⅰ、后期Ⅱ与四分体时期都出现不同数量的落后染色体、染色体桥、微核等现象。

Results The sensitivity and specificity of "three antibodies method" for detection of Y chromosome signal in brain tissue is 85.67% and 100%, respectively; the sensitivity and specificity of direct tyramine signal amplification method for detection of Y chromosome signal in brain tissue is 92.82% and 100%, respectively.

赵春礼1；邹西峰1，2；蔡青3；高尔静3；刘玉军1；赵焕英3；张进禄3；徐群渊11。首都医科大学北京神经科学研究所，北京市神经再生修复研究重点实验室，教育部神经变性疾病重点实验室 2。华北煤炭医学院附属医院神经外科 3。首都医科大学医学实验与测试中心

In organisms with XXY chromosome type, there is an extra X chromosome.

在XXY型的生物体中，有一个额外的X染色体。

If it consists of one X chromosome and one Y chromosome, it will be a male.

动物的性徵决定於两种性染色体，一是「X染色体」，一是「Y染色体」。

The father has a normal X gene on the X chromosome and a normal Y chromosome.

父亲有一个正常 X 基因在 X 染色体和一条正常 Y 染色体。

While a male cell has an X chromosome from the mother and Y chromosome from the father.

而男子的细胞有一个X染色体来自母亲，一个Y染色体来自父亲，而Y染色体仅决定性别。

Because this basis and 18 contrast of chromosome will diagnose big Y chromosome, should have a more exact level.

因此根据和18号染色体的对比来诊断大Y染色体，应该有一个更为精确的标准。

These genes appear most frequently on chromosome 12 but rarely on chromosome 21 and Y.

这些基因在12号染色体上出现频率最高，而在21号和Y染色体上很少出现。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。