查询词典 chromosome

Results Free MMC 0.15625～5.0μg/kg significantly increased the positive rate of PCE micronuclear test, the chromosome aberration rate and rat teratogenecity, but the mitomycine C absorbed onto ACNP did not increased these heredity and proliferation toxicological indexes in a dose range of 0.625～10.0μg/kg.

结果 游离丝裂霉素腹腔注射0.15625～2.5μg/kg 均可导致小鼠骨髓微核试验阳性率和CHL染色体畸变率，用纳米活性炭吸附MMC后给药，在0.625～20.0μg/kg 腹腔注射后都没有明显增加微核试验阳性率和染色体畸变率。

Somaclonal variations analysis on mixoploid hybrid plant BI-1 showed that percentage of cells with 2n=25, 26 decreased and percentage of cells with 2n=29 ascended.Chromosome segments of I.

并对混倍体杂种BI-1的无性系变异进行了分析，发现染色体数目为25、26的细胞比例呈明显下降趋势，而染色体数为29的细胞比例明显上升，其他染色体数目的细胞比例处于动态变化之中。

By chromosome counting, the detected hybrids were mixoploid.

通过染色体计数，发现所检测杂种为混倍体，同一植株的细胞有多种染色体数目构成。

Karyotypic findings showed that all cultivars were mixoploid with chromosome number ranging from 49 to 57, and 54 was the most frequent number observed.

结果表明：（1）17个栽培小菊均为混倍体，染色体数在49～57之间变异，以54条为主；（2）染色体呈现多态性：多数品种由中部、近中部和近端部着丝粒染色体组成；最长与最短染色体的比值为1.62～2.39；臂比＞2的染色体所占的比率为11.11%～29.62%；核型不对称系数为59.74%～63.37%；3个地被菊品种和'奥运橙光'、'金陵白凤'（2n=53）核型类型为&2B&，其它品种为&2A&型。

To summarize molecular, morphology, chromosome and pollen characters, the conclusion was reached that Epimedium was an nd monophyletic taxon. To divide the genus into any groups would be artificial. It is proposed that the disjunction by space, climate and seas were the main reason of respectively differentiation of each group by the view of geographic and climate changes in the temperate zone of the world. Because of its evolution-conservation, the disjunction did not bring about obvious divergence on the level of molecular and morphology.

综合分子特征和形态、细胞学、孢粉学等性状，提出淫羊藿属是一个进化上极为保守的、自然的单系的植物类群，进行属下任何阶元的划分都将是人为的，从旧世界温带的地质变化及气候变迁的角度推测，空间、气候和海洋的隔离是产生类群各自分化的主要原因，但由于其进化上极度保守，这些隔离尚未产生出类群间形态上和分子水平上的明显趋异。

Monosomic alien addition lines are plants that with one chromosome of an alien donor species attached to the relative recipient species.

异源单体附加系是从亲缘关系较远或属间的一个物种单条染色体附加到另一个物种中。

The result indicates that there are one dominant and one recessive complementary gene that are effective against the Indian race 2E16. However, the monosomic analysis results indicated there was one resistant gene to the Indian race 2E16 and the gene was located on chromosome 3B. The current study shows that it is different from the known genes.

采用常规杂交分析方法，对铭贤169与阿夫杂交的F_1、F_2、BC_1代及其亲本进行抗性鉴定和统计分析，结果表明，阿夫对2E16菌系的抗性至少由1对显性抗条锈基因控制；通过单体分析将阿夫抗2E16菌系的1对显性基因定位在3B染色体上，等位性分析表明该基因不同于目前的已知基因。

Chromosome numbers of two species in the genus Morinda L.

两种羊角蕨属植物的染色体数。

Methods Through comet assay and observing mutation frequency of HPRT gene, frequencies of micronuclei and multinucleate cells, chromosome analysis, we researched the hereditary toxicity of DU and protection of DMSO.

采用彗星实验、HPRT基因突变检测、微核多核及染色体分析研究贫铀的遗传毒性作用及DMSO对其毒性的抑制作用。

The Sry gene sequence of Muntiacus crinifrons was acquired and the conclution was that there are 83% homology between the human and Muntiacus crinifrons. It was testified that in all mammal Sry gene is consertive. On the other side the Sry gene was located to the Y2 chromosome of the Muntiacus crinifrons.

最后提取雄性黑麂的基因组DNA，并用同一对引物对其进行扩增，亦得到Sry基因的片段，对此扩增片段进行克隆，测序，结果表明其与Y2染色体得到的Sry基因片段完全一样，与人SRY基因的同源性均为83%。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！