基因世代

Bainong 64',a resistant wheat variety to slow powdery mildew,'Jingshuang 16',a susceptible wheat variety to slow powdery mildew were crossed with each other and backcrossed with their F_1,and thus six generations including the parents were obtained.

慢白粉品种'百农64'与感病品种'京双16'杂交，F1自交并分别与两亲本回交，获得包括亲本在内的6个世代，分析了'百农64'慢白粉性的基因数目、遗传力和遗传模型。

Two tobacco F1 hybrids,F2s,backcrosses B1s and B2s and their parents P1 and P2 were used to estimate the gene effects for 7 agronomic and 4 quality characters.

利用红花大金元×青梗，红花大金元×中烟14号P1、P2、F1、F2、B1、B2 6个世代资料对7个农艺性状和4个品质性状进行了基因效应分析。

This information is then detailed as the genetic progression from one generation to the next which allows the correct selection of sires need for a specific herd or trait that needs to be improved.

这数据然后被详细说明如从世代到允许陛下的需要正确的选择特定的兽群或特色需要到被改良的下一个的遗传基因的前进。

Several of those newly identified proteins are of interest to our understanding of the molecular physiology of kelps, for example their carbon-concentrating mechanisms, cell wall biosynthesis and halogen metabolism.

简评：应用cDNA文库技术，进行基因表达差异研究，对于具有世代交替的藻类研究，有一定参考价值。

Seeral of those newly identified proteins are of interest to our understanding of the molecular physiology of kelps, for example their carbon-concentrating mechanisms, cell wall biosynthesis and halogen metabolism.

简评：应用cDNA文库技术，进行基因表达差异研究，对于具有世代交替的藻类研究，有一定参考价值。

The aim of this study was to investigate the risk of cirrhosis associated with genotype, precore stop codon G1896A mutation and A1762T/G1764A double mutation in the basal core promoter of hepatitis B virus.

本研究乃以前瞻性世代研究法探讨B 型肝炎病毒B、C基因型、precore stop codon G1896A 突变和basal core promoter A1762T/G1764A 双突变对於发生肝硬化的影响。

There were two genotypesin China Merino fecundity sheep,the BB and B+ mutation genotype was superior in Chinese merino fecundity sheep,the ewes with genotype BB and B+had 4.0 and 3.5 ovulations,genotype ++ had 1.56 ovulations averagely,The BB and B+ mutation genotypes were 2.44(P.01)and 1.94(P.01)ovulations more than with genotype ++ in the Chinese merino sheep.

绵羊的多胎是绵羊业多产、高产的基础。一般来说，家畜的繁殖性状是受多基因控制的数量性状，传统的选择方法对其遗传进展的改良是很慢的，世代间隔长。分子标记辅助选择为解决这一问题提供了新的方向和契机。

In a no overlapping generation population with selection, mutation、migration and random drift under consideration, two mathematical models presented in this paper might describe change of frequencies of multiple alleles at a locus and population mean of metrical characters resp.

在假定无世代重叠，群体内存在选择、突变、迁移，且考虑漂变效应的情况下，本文所构建的两个数学模型可分别用来描述一个座位上多个主基因频率或数量性状群体均数的动态变化。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐