查询词典 chromosome

Medication during early pregnancy can cause fetal spina bifida, cleft palate, clubfoot, small limbs, Phocomelia, umbilical prominent cheek transverse fissure, cerebral meningocele, cerebral spinal cord dysfunction, osteogenesis imperfecta and fetal death. 2, prednisone: big neat administration during early pregnancy can cause stillbirth, streaming, no brains infants, small ectopic kidney, one-eyed, cleft palate, bone deformities, such as. 3, 6-8 weeks pregnant villus chromosome examination; pregnant 16-20 weeks to do the amniotic fluid puncture in amniotic fluid cell chromosome examination; At the same time, dynamic observation of maternal alpha-fetoprotein content; attention fetal B-track general shape and structural abnormalities offal.

妊娠早期用药可致胎儿脊柱裂，腭裂，畸形足，小肢，短肢畸形，脐突出，颊横裂，脑脊膜膨出，脑脊髓功能障碍，成骨发育不全及胎儿死亡。2、强的松：妊娠早期大齐整给药可引起死产、流、无脑儿、小异位肾、独眼、腭裂、骨畸形等。3、孕6-8周取绒毛组织进行染色体检查；孕16-20周行羊水穿刺做羊水细胞的染色体检查；同时，动态观察母血中的甲胎蛋白含量；注意B超跟踪胎儿大体形态和内脏结构是否异常。

Puna Chicory, leymus multicaulis and Psathyrostachysjuncea.For the materials used in this article were some old seeds which had been stored for 3-7 years, we found a lot of abnormal mitotic and meiotic cells, such as chromosome bridge. chromosome laggard, micronucleus, multipolar division and so on. Moreover, we also found the wheat"s multi-anther, double germinate-hole"s microspore and collected the photos of every period of meiosis. mitosis.

因为用于细胞学检测的小麦材料是搁置多年的陈旧种子，所以在检测染色体数目时，发现大量异常分裂现象，包括染色体桥、染色体落后、微核、多极分裂等；实验过程中还发现小麦多花药现象和花粉粒具双萌发孔的现象；同时在显微观察同时还注意搜集了细胞有丝分裂、减数分裂各个时期的分裂相图片。

Results showed that the PMC meiosis of autotetraploid was similar to the diploid except some particularities. In metaphase Ⅰ, multivalent, quadrivalent, trivalent, bivalent and univalent were observed and some of the chromosomes were found not to rank on the metaphase plate and so did in metaphase Ⅱ cells. In anaphase Ⅰ and anaphase Ⅱ cells, there were lagging chromosomes, chromosome bridge and fragment. During anaphase Ⅱ and telophase Ⅱ, chromosome segregation was not synchronous or equal. At tetrad stage, dyad, triad, tetrad with micronucleus and polyad appeared.

结果表明，同源四倍体花粉母细胞减数分裂过程与二倍体相比，中期Ⅰ染色体构型复杂，有多价体、四价体、三价体、二价体和单价体；中期Ⅰ及中期Ⅱ有部分染色体没有排列在赤道板上；后期Ⅰ及后期Ⅱ出现落后染色体、染色体桥及断片；后期Ⅱ和末期Ⅱ有染色体不同步分离及不等分裂的现象；四分体时期还出现二分体、三分体、含微核的异常四分体及多分体。

Dr. Page's new finding is surprising because it shows that the Y chromosome has achieved an unexpected salvation. The hallmark of the Y chromosome now turns out to be renewal and reinvigoration, once the unnecessary burden of X-related genes has been shed.

佩奇博士的新发现让人吃惊不已，这表明Y染色体出人意料的被重新救活，贴在它身上的旧标签要被重写，以前笼罩在它身上的X染色体关联基因的阴霾也一扫而空。

Chromosome pairing behavior in meiosis of the hybrid F1 was carried out. Results showed that in an average , 1.25 rod bivalents were observed in one PMC, meiotic configuration was 2n=14=11.49Ⅰ+1.25Ⅱ(Xta=1.25) and most of PMCs possessed 1～5 bivalens, indicating that the relatively high homeology was detected between the D genome of Ae.tauschii and the V genome of D.villosum. The morphological differences between F1 hybrids and their parents were significant. F1 plants were highly self-sterile, but partially self-fertile after treated by chromosome doubling technique.

对杂种F1花粉母细胞减数分裂中期Ⅰ染色体配对行为进行观察发现，"节节麦×簇毛麦"杂种F1平均每PMC有1.25个棒状二价体，染色体的平均构型为2n=14=11.49Ⅰ+1.25Ⅱ(Xta=1.25)，大部分被观察的细胞出现1～5个二价体，表明节节麦D染色体与簇毛麦V染色体间具有相对较高的部分同源配对， D和V染色体之间存在一定的部分同源性。F1植株高度自交不育，经染色体加倍处理后能够自交结实。

A chromosome that is not a sex chromosome .

不能正常进行肌肉的运动。

There were different views about which chromosome is the sex chromosome.

对不同核型中性染色体的确定曾有不同的观点。

A chromosome that is not a sex chromosome .If sterility is due to the body, then the body is degenerate and wrong

如果不能生育是由于身体上的关系，那么，那个身体是退化的，是错误的

A chromosome that is not a sex chromosome .Of, relating to, affecting, or resembling a gland or its secretion.

腺或腺分泌的腺的或腺分泌的，与腺和腺分泌有关的，受腺或腺分泌影响的

The sex chromosome that comes from the father could be one of two types, X for a girl, or Y, a much smaller chromosome, for a boy.

来自父亲的性染色体有两种形态：女孩是X，男孩则是 Y ，一种更小的染色体。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。