查询词典 chromosome

In this study, on the basis of information theory and statistical methods, we use mutual information, n-tuple entropy and conditional entropy, combining with biological characteristics, to analyze the long range correlation and short range correlation in human Y chromosome palindromes.

本文中，我们利用信息论和统计学的方法并结合生物学的特征研究人类Y染色体回文序列的互信息、'n字'熵、条件熵，定量分析了回文序列的长程关联和短程关联，发现其中既存在长程关联，也存在短程关联，并且它们主要是由序列中的重复序列引起的。

The chromosomal constitution of 200 advanced lines from 1R monosomic addition lines between the wheat cultivar Mianyang11 (MY11) and different rye lines R3, R12, and Baili-rye was studied by the improved C-banding and A-PAGE method. The result showed that 45 lines were identified as 1RS/1BL translocation lines congruously by the two methods. But a line (843-1-1), originated from an 1R addition line of wheat cultivar MY11 and rye line R12, was identified as 1RS/1BL translocation line by C-banding and genomic in situ hybridization,but the secalin block from chromosome arm 1RS of rye was absent in the A-PAGE pattern of its seed proteins.

结果发现，在鉴定的200个株系中，有45个株系经C-带和A-PAGE检测均一致地发现它们含有一对1RS /1BL易位染色体，而一个株系843-1-1，C-带鉴定、原位杂交结果均证明它含有一对1RS/1BL易位染色体，但A-PAGE醇溶蛋白图谱却不具有黑麦1RS染色体臂的黑麦碱特征带，而表达出既不同于黑麦碱又不同于亲本绵阳11的醇溶蛋白带型。

To overcome the premature of simple genetic algorithm, the calculating efficiency of SGA is improved by the following two ways; Firstly, in order to ensure convergence of algorithm and reduce influence factor of convergence, elitist selection and adapted crossover and mutation operator are adopted. Secondly, because this study deals with finding minimize volume of structure, to quicken convergence of this problem, in line with mechanics criterion the paper carry out mutation to some genes in chromosome according to variations of internal force. This will let algorithms to search answer with our hoping directions.

针对基本遗传算法存在早熟的问题，本文主要从两个方面进行了改进，首先为了保证算法的收敛和减少影响算法收敛因素，采用了最优保护策略和自适应的交叉和变异算子；其次，由于本文研究内容涉及求结构最小体积问题，为了加快此类问题的收敛速度，本文结合结构优化中的力学准则，对个体染色体中的某一段基因按照内力变化进行变异操作，使得算法按一定方向进行搜索最优解。

A SSR marker based linkage map covering chromosome 10 and the short arms of chromosomes 1 and 11 of rice was constructed and applied for mapping fertility-restoring genes in Zhenshan 97A/(Zhenshan 97B/Milyang 46)F_ 6 population consisting of 704 lines.

应用由704个株系组成的珍汕97A/(珍汕97B/密阳46)F6测交群体，针对水稻第10染色体和第1、11染色体短臂构建了微卫星标记连锁图谱，检测到控制野败型细胞质雄性不育育性恢复的4个QTL，其中位于第10染色体长臂中下部的Rf4具有主效效应，位于第1染色体短臂的Rf3具有较大效应，位于第10染色体长臂近着丝粒处的qRf10和第11染色体短臂近着丝粒处的qRf11表现出微效作用。

The reduction of chromosomes in the hybrid and the high numbers of bivalents were possibly due to the chromosome of Crambe abyssinica eliminating and the genome of Brassica.

杂种PMC减数分裂中，平均配对构型为0.06Ⅲ+11.26Ⅱ+3.80Ⅰ，二价体数目变化于8～13之间，以10Ⅱ、11Ⅱ、12Ⅱ的细胞出现频率较高，分别为26.60%，23.91%和30.98%，单价体数目变化于0～8个之间。

In order to correct the locality and partiality in the classical analysis method for investment, a genetic algorithm used in short-term stock investment analysis is proposed. Significance of chromosome, adapt value parameter in the stock market is explained and an applied scheme of selection, crossbreed, and variation operator is designed.

针对传统投资分析方法的局限性和一定程度的片面性，提出将遗传算法运用于股票短期投资分析，具体解释了染色体、适应值等参数在股市分析中的实际意义，并设计了选择、杂交、变异算子的使用方案，同时改进了算法——提出"伸展算子"。

This course is to include the following contents: 1.the history of cytogenetics, 2.the fine structure of chromosomes and staining technique, 3.the diversity and evolution of chromosome, 4.the relationship between plant breeding and cytogenesis on tropical vegetable production.

本课程提供大学部高年级及研究生研习。课程内容包括细胞遗传史，染色体之细微构造及染色技术，染色体之变异与演化，细胞遗传与植物育种之关联性等。

Chromosome is the carrier of inheritance material, whose structures and functions are the most important content of cytogenetics.

染色体是遗传物质的载体，染色体的结构和功能研究是细胞遗传学中最重要的内容。

It is an important process of cytogenetics to study the structures and functions of chromosome, the main carrier of genetic material DNA.

染色体作为主要的遗传物质DNA载体，研究它的结构和功能是细胞遗传学必不可少的重要环节。

Methods Morphology observation, chromosome cytogenetics, tumorigenesis in nude mice, and the sensitivity to virus were examined.

采用细胞形态学观察、细胞遗传学染色体分析、细胞在裸鼠体内恶性生长情况的组织病理学检测以及细胞对病毒的敏感性等方法。

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！