As Charles Darwin observed, natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others.
正如查尔斯·达尔文（Charles Darwin）所观察到的那样，只要有一种基因组成的个体比其他个体更善于繁殖，自然选择就会起作用。
The genetic composition of the new sterility and its mechanism and the prospect of its utilization are discussed.
本文还讨论了新不育系的遗传组成及在油菜杂种优势利用和机理研究方面的重要作用。
A clone refers to one or more offspring derived from a single ancestor, whose genetic composition is identical to that of the ancestor.
克隆是指来自同一祖先的一个或多个后代，其基因构成与其祖先完全相同。
Genetic drift is change in the genetic composition of a population arising as a consequence of sampling of gametes in a finite population.
所谓遗传漂变就是指：在一个有限的种群内，由于配子的随机取样使得遗传组成在种群内发生变化的现象。
The problems of selection and utilization of parent, setting of crossing, and increasing the origin of genetic composition were further analyzed and discussed in details.
并对亲本选择利用，杂交组合的配置，扩大遗传组成源等方面进行分析探讨。
An organism consisting of two or more tissues of different genetic composition, produced as a result of mutation, grafting, or the mixture of cell populations from different zygotes.
嵌合体由两种或两种以上有不同基因结构的组织所构成的有机体，由于突变、嫁接或来自不同合子的细胞群体相混合而产生。
Product Genetic Model is the main content of product Genetic Theory. It describes the composition of product Gene and the relationship among various products information.
产品基因模型是产品基因理论研究的主要内容，它是对产品基因的一种描述方式，反映产品基因的构成及各种产品信息之间的关系。
The last remain fluid of lamprophyre magma is similar to metallogenetic fluid in composition and precipitating sequence, showing their genetic relationship.
煌斑岩岩浆晚期残余气液与成矿流体组成相近、沉淀次序相同，表明它们可能有成因联系。
The genetic parameter of plasma lipid composition and egg yolk traits using paternal line half sib are also estimated.
且以父系半同胞法估计了血脂和蛋黄性状的遗传参数。
The composition of fatty acid in plant seeds can be changed artificially through genetic manipulation.
植物种子中的脂肪酸成分可通过人为遗传调控发生改变。
Objective To assess the genetic and environmental influences on skinfold thickness and body composition of children and adolescents in different development periods.
目的分析遗传与环境因素不同发育期双生子皮褶厚度及体成分的作用特点。
Investigates and diagnoses blood and other genetic disorders by studying cellular composition of blood and blood-producing tissues.
通过研究血液细胞组成和造血组织诊断血液和其他遗传病。
Studies of the C and H isotopic composition of natural gases of continental origin will provide valuable information on the prospecting and development of natural gases of different genetic types.
通过对我国陆相成因天然气碳、氢同位素研究，探讨其同位素组成特征及其意义，从而为各种成因类型天然气的勘探开发提供了有益的信息。
The process and procedure of breeding and the genetic changes during the process of its formation, its characteristics and its nutritive composition were reported.
文中报道了黑粒小麦76的选育经过，育种程序，特征特性和营养成分的分析比较。
Composition, deformation and genetic mechanism of three tectonic melange zones in Garze area are discussed.
重点论述了甘孜地区三条构造混杂岩带的物质组成、变形特征和形成机制。
Composition, deformation and genetic mechanism of three tectonic melange zones in Garze area are discussed.
重点论述了甘孜地区三条构造混杂岩带的物质组成、变形特征和形成机制。
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