The hybrid from a donkey and a horse is called a mule.
驴和马交配生出
杂种叫骡子。
;混合
The hybrid from a donkey and a horse is called a mule.
驴和马交配生出
杂种叫骡子。
The male and female pronucleus fused finally.Most hybrids could develop normally.
熟

原核
后

合过程,
合子核,受精过程结束。
It may survive and give rise to two mononucleate hybrid cells called synkaryons.
可存活并产生两个称为合核体
单核
杂种细胞。
In postzygotic isolating mechanisms mating occur, but the resulting hybrid organism is inviable or sterile.
在合子后隔离机制中,匹配可以进行,但或不产生杂种或杂种不育。
The various genes of increasing sweet taste and gene wx can be expressed on the same ear, and the aim has been realized breeding the corn hybrids with sweet and waxy flavous fresh ears.
该方法利用遗传学原理使各种不同基因型
甜与糯
籽粒能在同一果穗上得以同时表达,因而实现了培育既甜又糯
鲜食甜糯玉米
育种目标。
Individuals crossing exclusively within the same population produce more progeny than those crossing in both directions and thereby use up some of their gametes for the production of inviable hybrids.
全在同一种群内进行杂交
个体比以两个方向进行杂交
个体繁殖后代要多,因此为了产生无生机
杂种,就要消耗掉一些配子。
Definition: Whole or cut, dried bark of Cinchona pubescens Vahl (Cinchona succirubra Pavon), of C. calisaya (Weddell), of C. ledgeriana (Moens ex Trimen) or of its varieties or hybrids.
本品为茜草科植物柔毛金鸡纳(鸡纳树)Cinchona pubescens Vahl (Cinchona succirubra Pavon)、白金鸡纳树C. calisaya (Weddell)、金鸡纳树C. ledgeriana (Moens ex Trimen)及其变种及杂交品种
整或切段
干燥树皮。
This task was using histology method to study the hypophysis of murrah hybrid buffalo of Guangxi,and compare with the GuangXi Bubalus bubalis hypophysis to study what differences have them.
对广西摩杂一代水牛
脑垂体进行组织学研究,并和广西沼泽型水牛
脑垂体进行比较。
The lively and recognizable Tiger barb should never be kept with long-finned species, such as angelfish, gouramis, or Veiltail hybrids as they like to nibble at their fins!
不应将活跃而显眼
虎皮鱼与鱼鳍长
鱼种放在一起饲养,那些鱼种例如有神仙鱼、足鱼或纱罗尾杂交鱼-这是因为虎皮鱼喜欢啃咬它们
鱼鳍!
Based on the years experiences, the author summarized and provided the main criterion and technique measures for improved cytoplasmic male sterile monogerm hybrid sugarbeet of seed reproduction.
摘要总结了多年
性不育甜菜单胚型杂交种
良种繁育实践经验,对该类品种
良种繁育主要原则和技术措施进行探讨。
The increase of cellulous fiber in the hybrid fiber can result in the increase of optimum asphalt content, the reduction of density, air voids and Marshall stability.
同时随着混杂纤维体系中木质素纤维比例
增加,沥青混合料
最佳沥青用量增加,密度下降,空隙率和马歇尔稳定度呈减小趋势。
The neutronic computation and analysis is performed to assess the technical feasibility of transmutation of long-lived actinides using fusion-fission hybrid reactors by the above code system.
利用所研制
程序系统对长寿命锕系元素在聚变-裂变混合堆中
转化进行了探索性研究。
Abstract: The compatibility of selfpollination and crosses between cultivars in the same hybrid group or in different hybrid groups was studied in this paper.
本文研究了百合
麝香杂种系、亚洲杂种系与东方杂种系品种自交、系内与系间杂交亲和性。
Scientists had theorized that homoploid hybrids would be more likely to form when the new species was adapted to life in an extreme environment.
科学家们有理论说同倍体混血是在极端环境下新品种更加适应生存需求时出现
。
The compatibility of selfpollination and crosses between cultivars in the same hybrid group or in different hybrid groups was studied in this paper.
本文研究了百合
麝香杂种系、亚洲杂种系与东方杂种系品种自交、系内与系间杂交亲和性。
The MHC is also thought to act as a proxy for general outbreeding, with all the hybrid vigour that can bring.
幸运
是,生物进化已经使哺乳动物拥有了利用体味和嗅觉辨别MTC差异度
能力。
As compared with the hybrid tracking and the coplane four-point registration algorithms, the proposed algorithm is of higher registration accuracy.
与混合跟踪注册算法、共面四点注册算法相比,文中方法具有更高
精度。
LIU Jia-Wen,DING Min.Morphological and cytogenetical studies on intergeneric hybrid between triticum aestivum and erem opyrum orientale.Acta Genetica Sinica,1996,23(2):117-123.
刘建文,丁敏.普通小麦与东方旱麦草属间杂种
态和细胞遗传学研究.遗传学报,1996,23(2):117-123.
In contrast to homoploid hybrid species,polyploid species are easily diagnosed because of chromosome number changes associated with genome doubling.
与同倍杂合体物种相比,因为与基因组加倍相关
染色体数目
变化,多倍杂合体物种很容易判断。
Three-dimensional(3D)unsteady compressible flow over an open cavity and the relevant aeroacoustics are studied using a hybrid LES-acoustic analogy method.
使用大涡模拟-声学比拟相结合
方法,研究三维开式空腔
非定常可压缩过流及其相关
气动声学问题。
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