染色体

This results seemingly indicate tnat the morphogenic potential of calli and 〓h〓 fo〓mation of abnormal shoots may be related to the degrees of the aber〓ation of chrome〓ome numbers.

这表明分化能力与染色体数的变异程度有关，另外芽中染色体数异常细胞的存在也许是一些芽发育成畸形苗的一个重要原因。

Methods Monoclonal antibody against the glycophorin A was used to identify nucleated erythrocytes in the peripheral blood of pregnant women.Candidates fetal cells from 3 pregnancies at 16 to 24 weeks of gestation were isolated successfully.Sorted cells were also confirmed using Y-special probe (PY3.4) repeated sequences in maternal blood from women carrying male fetuses were detected by polymerase chain reaction.Results The PY3.4 position hybridization rates were 31.5%,0 and 38% respectively in sorted GPA positive cells of 3 samples by FISH,and the results of GPA+ cells of the 3 cases by PCR were positive,negative and positive respectively,which were manifested by the gender after aborticide.

选用红细胞特异单克隆抗体Glycophorin A结合流式细胞术成功地从3例妊娠16～24周的孕妇血中分离出NRBCs，并用Y-染色体特异重复序列DNA探针(PY3.4)荧光原位杂交及聚合酶链反应技术检测Y-染色体特异序列结果 FISH结果，3例分选出的GPA阳性细胞中PY3.4杂交阳性率分别是31.4%、0、38%；其PCR结果，分别为阳性、阴性、阳性，并在引产后得到性别证实。

Methods Monoclonal antibody against the glycophorin A was used to identify nucleated erythrocytes in the peripheral blood of pregnant women.Candidates fetal cells from 3 pregnancies at 16 to 24 weeks of gestation were isolated successfully.Sorted cells were also confirmed using Y-special probe (PY3.4) repeated sequences in maternal blood from women carrying male fetuses were detected by polymerase chain reaction.Results The PY3.4 position hybridization rates were 31.5%0 and 38% respectively in sorted GPA positive cells of 3 samples by FISHand the results of GPA+ cells of the 3 cases by PCR were positivenegative and positive respectivelywhich were manifested by the gender after aborticide.

选用红细胞特异单克隆抗体Glycophorin A结合流式细胞术成功地从3例妊娠16～24周的孕妇血中分离出NRBCs，并用Y-染色体特异重复序列DNA探针(PY3.4)荧光原位杂交及聚合酶链反应技术检测Y-染色体特异序列结果 FISH结果，3例分选出的GPA阳性细胞中PY3.4杂交阳性率分别是31.4%、0、38%；其PCR结果，分别为阳性、阴性、阳性，并在引产后得到性别证明。

Our study provides evidence that in human cells abscission is coordinated with the completion of chromosome segregation to protect against tetraploidization by furrow regression.

此项研究表明人体细胞的切割作用，与染色体隔离的完整性协同，保护染色体免于逆向作用导致的四倍体化。

Histone acetylation and deacetylation can regulate many chromosome functions, such as gene expression and chromosome segregation.

组蛋白乙酰化和去乙酰化可调节染色体的多种功能，例如基因表达和染色体分离等。

Objective To study the advantages of dual-color fluorescence in situ hybridizationin sex chromosome analysis of gonad agenesis patients over traditional chromosome analysis.

目的 探讨荧光原位杂交技术比常规染色体分析，在性腺发育不全患者性染色体检测中的优越性。

We established the technical system to obtain the EST library of plant specific chromosome,which is important to gain the ESTs and genes located on specific chromosome and provide a new tools for complicated allopolyploid genome research.

本项目获得了建立植物特定染色体EST文库的技术体系，它对分离特定染色体的EST及克隆新基因有重要参考价值，也为异源多倍体植物基因组研究提供了新的技术手段。

Based on the above results, we suggest that selective changes of low-copy sequences occur rapidly after polyploid formation, which may contribute to the differentiation of chromosomes in newly formed allopolyploid wheats.

认为这些低拷贝的染色体专化序列对于多倍体形成后部分同源染色体之间的进一步分化起着重要作用。

A protein,produced by specialized ameloblast cells,found in tooth enamel.Distinctive in that the genes for it can be found on both the X and the Y chromosome.Chromosomal location:Xp22.1-22.3 and Y.

一种蛋白质，有特定的成釉细胞细胞制造，可以在牙齿的珐琅中找到，特别之处在于它的基因可以在X和Y染色体中找到，染色体位置：Xp22.1-22.3和Y。

A protein,produced by specialized ameloblast cells,found in tooth enamel.Distinctive in that the genes for it can be found on both the X and the Y chromosome.Chromosomal 本地:Xp22.1-22.3 and Y.

一种蛋白质，有特定的成釉细胞细胞制造，可以在牙齿的珐琅中找到，特别之处在于它的基因可以在X和Y染色体中找到，染色体位置：Xp22.1-22.3和Y。

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！