查询词典 chromosome

To reveal the construct of hybrids, GISH showed there was no chromosome of ryegrass.

为了了解细胞内染色体构成，GISH显示未发现黑麦草染色体的存在。

The data byχ~2 were consistent with the separation ratio as 1: 2: 1 χ~2=4.028＜χ_(0.05,2~2=5.99, which further conformed that glandless character was controlled by a incomplete dominance gene, Gl_2~e. 2. SSR markers every about 5cM were selected in the chromosome 12 of our lab genetic linkage map to screen the parent plants. The markers with the polymorphism were used to amplify the DNA of 210 F_2 segregating plants selected randomly and recorded the marker genotypes. After eliminating the segregation distortion markers byχ~2 test, other SSR markers were detected by linkage analysis.

二、参照本实验室海陆种间遗传连锁图谱第12染色体上的SSR标记，平均每5cM左右选择一个标记进行亲本多态性的筛选，筛选出具有多态性的标记位点进一步扩增随机抽取的210个F_2群体单株的DNA，鉴定每个个体的标记基因型。X~2检测剔除偏分离标记后进行连锁分析，发现Gl_2~e基因位于CIR362与NAU5079之间，进一步参考图谱上位于CIR362与NAU5079之间的标记加密图谱，最终将其定位在CIR362和NAU2251b、NAU3860b、STV033之间。

However, if a Y-chromosome is present , it stimulates the undifferentiated gonadal cell mass to develop into testicles .

然而，如果受精卵中存在Y染色体，它会调控未分化的生殖细胞团发育成睾丸。

Fromthese facts,It could be deduced that 8 to 14 pairs of chromosomes possessed a certaindegree of hetorology,which was directly groved to be hybrid origin of P.tomentosaaccording to the good chromosome homology and fertility of P.bolleana and thehybrids of P.tomentosa×P.bolleana,it could be further deduced that the original parentsof P.tomentosa involved probably P.bolleana or P.alba.

从终变期、中期I的染色体构型看，有数目不等的联会程度较差的单价体和棒状二价体出现，在后期I，甚至末期I亦可见到含落后染色体分裂相的细胞，由此推断可能有8~14对染色体表现出一定程度的异源性，鉴于新疆杨以及毛白杨与新疆杨杂交产生的杂种毛新杨的染色体同源性较强、育性较好等现象，进一步推断毛白杨起源亲本可能包括新疆杨或银白杨。

The results showed that the optimal combination of three factors and three levels in the detection of triploid Haliotis discus hannai by using chromosome specimens from blood cells of living bodies was: PHA treatment time 18h, PHA concentration 0.04% and sampling time 22:00-24:00. The order of the three factors was PHA treatment time → PHA concentration →sampling time.

根据正交实验直观分析结果，得出用血细胞直接制备染色体标本进行三倍体皱纹盘鲍活体倍性检测的最优组合：PHA处理时间18h、PHA浓度0.04%，抽血时间22：00-24：00，3因素的主次顺序：PHA处理时间→PHA浓度→抽血时间。

Capitata L., were dispersed along the chromosome lengths, with a predominant distribution in the pericentromeric or proximal regions and some heterochromatic arms.

大基因组的玉米和大麦的所有染色体都被密集地标记，并在染色体全长显示出强标记区与弱标记或不标记区的交替排列。

The origin of the heterochromatic regions on the long arm of maize B chromosome was studied in two ways: the Southern signals of the CL-repeat; and its deletion, insertion, and mutation variants.

本研究分别以CL-repeat的南方杂合讯号以及因缺失、插入和突变造成的序列变异两个角度，来探讨玉米B染色体长臂远端异染色质(distal heterochromatin， DH)区的起源。

"Think about a chromosome as being a highway," says Aramayo. In order to function properly, some sections of the highway must have illumination, which means DNA must be expressed, whereas other sections must not have illumination, which means DNA must not be expressed, or that the region must be heterochromatic.

Aramayo说，我们可以将染色体想象成一条高速路，为了正常运行，高速路的一些区段需要照明，也就是说DNA必须被表达；而其它区段则不需要照明，即DNA不需要表达，或这些区段必须被异染色质化。。。。。。。

The origin of the heterochromatic regions on the long arm of maize B chromosome was studied in two ways: the Southern signals of the CL-repeat; and its deletion, insertion, and mutation variants.

中文摘要本研究分别以CL-repeat的南方杂合讯号以及因缺失、插入和突变造成的序列变异两个角度，来探讨玉米B染色体长臂远端异染色质(distal heterochromatin， DH)区的起源。

There are two traditional views about the processes that maintain B chromosome polymorphisms in populations at present, which are the parasitic model and the heterotic model.

目前有关B染色体在居群中数目多态保持有2种传统观点：杂合优势模型和寄生模型。

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！