back cross

The compatibility of this cross was also present in the F_2 , and back cross generations .

该组合的亲和性在F2及回交世代中仍可表现。

Regression Analysis of Carcass Meat Yield Using Back Cross Section Indicators as Parameters in Luxi Yellow Cattle

鲁西黄牛背截面指标为参数的胴体产肉率回归分析

Effect of Water Stress on Biomass Accumulation , Distribution and Yield Character After Heading Stage of Rice Back Cross Descendant

花后水分亏缺对水稻回交后代干物质积累与分配及产量性状的影响

In this study 6 cross and 9 back cross combination were made between semi wild soybeans and cultivated soybean .

对6个栽培大豆与半野生大豆杂交组合及9个回交组合进行了分析。

The lysine content and the SSR profile of a back cross population was analyzed , and the reliability was proved .

通过对回交家系赖氨酸分析和SSR分子标记检测结果，对该技术的可靠性进行了验证；

EXPERIENCE IN REPRODUCTION OF NUDE MICE BY HETEROZYGOTE Method To design the genetic experiment by means of sib mating and back cross mating .

用半裸鼠（交配）繁殖裸鼠的实践经验方法采用同胞交配、回交等繁殖方法做遗传实验。

The experiments of cross and back cross showed that these mutations were belonged to recessive mutation of nucleus gene and controlled by a recessive monogene .

通过正反交试验表明，大豆叶绿素缺失突变属于核基因隐性突变，而且是由一隐性单基因所控制的。

A new variety Wuhua × Xuxing for summer autumn rearing has been bred by the methods of hybridization , back cross , and pedigree separation .

采用杂交、回交、系统分离育种方法，育成了适应长江流域夏秋期饲养的品种吴花×浒星。

In order to analysis the genetic characteristic of male sterility , test cross , sister cross , back cross , reciprocal cross and self pollination were conducted with these male sterile plants .

通过正交和反交对不育株的所属类型进行分析，结合自交、回交分析其遗传特点。

The bolting time character is a quantitative trait controlled by multiple genes . There is a most effective major gene , so the single cross or back cross can be used in breeding for premature bolting tolerance . 2 .

结球甘蓝抽薹时间性状是受多基因控制的数量性状，存在效应大的主基因，在进行耐抽薹育种中可采用单交重组或简单回交转育的方法进行。

Result The sparse mouse appeared in F_2 of the inbreeding and later generations of the back cross mating with the race mouse × F_1.It was proved that the sparse character is related with heredity .

结果在近交繁殖的F2代，宗祖鼠与F1回交的后代里，均有稀毛鼠个体出现。证明该鼠的稀毛性状与遗传有关。

The main characteristics of back - cross progenies were as follows : D. ⅲ, 15-18 ;

其主要性状为：回交子代的背鳍条Ⅲ，15～18；

The trait contrast and analysis of rotary burner with front wall collocation and front & back wall cross collocation for boiler

旋流燃烧器前墙布置与前后墙对冲布置锅炉的特性对比与分析

At last back scattering cross sections and bistatic scattering cross sections are calculated , and the scattering characteristics of the vegetation in half-space are given .

最终，通过理论计算得到了植被层的单双站雷达散射截面，给出了半空间下植被层的电磁散射特性。

Its main technological feature is the design of such components as setting unit part , back off cross correlation locking part , setting prevention part , fishing releasing part and soft wedge packing element sealing mechanism .

其显著的技术特点是设计了独特的坐封、丢手互锁机构，中途防坐机构，打捞解封机构和软楔式胶筒密封结构。

The back of the cross that I bought was an engraved prayer from the

后面的交叉，我买了一个刻有祈祷，从

Most students take the train back to Kings Cross to go home for the Christmas and Easter holidays .

绝大部分学生都乘坐它回到国王十字车站度过圣诞节和复活节的假日。

But see , the difficulty is to convert from that to the usual equation of a plane , you would still have to go back to this cross product method , and so on .

把这两个向量各乘上适当因子，然而困难在于，把它转化为普通平面方程的过程，你还是得使用外积的方法，就是这样了。

So every day I need to come back to the cross and focus on the tremendous price that Jesus paid for my sin , and appreciate the wonderful love of God that blesses me with forgiveness and peace .

所以每天我需要回到十字架里，聚集在耶稣为我的罪付出的巨大的代价，感谢神给我的宽恕，和平已经奇妙的爱。

Back to the Free Cross Stitch Patterns page

返回到自由的跨缝格局页

He fought back from behind to cross the finish line shoulder by shoulder with arch rival Terrence Trammell of American , silver medalist in the Berlin world championships .

在比赛中，刘翔后劲十足，最终与来自美国的劲敌，柏林世锦赛银牌得主特伦斯•特拉梅尔并驾齐驱，双双撞向终点。