染色体数

Reach the poles, n the number of sub-chromosome, and each sub-chromosome composition of only one chromatid.

到达两极的子染色体为n数，并且每条子染色体只由一条染色单体构成。

Results of chromosomic analysis showed that the chromosome of Beijing Fatty Chicken, Langshan Chicken and Small-tailed Han Sheep were mainly diploid and the individuals of diploid occupied 87.1%, 86.7%, 93.4% in population observed respectively. The chromosomic structure mutation was 1.5%, 0.8%, 1.4% respectively that different from chromosomic morpHology results reported by other researchers.

染色体分析结果表明，北京油鸡、狼山鸡、小尾寒羊成纤维细胞均以二倍体为主，二倍体染色体数目分别占所观察数目的87.1％、86.7％和93.4％；染色体结构变异率分别为1.5％、0.8％和1.4％；染色体形态与前人报道的其他品种相比略有不同。

In the 34 observed chromosome aberration cells, the micronucleus number had 5 types of 8, 9, 10, 11 and 12, among them, the chromosome aberration cells with 10 and 11 micronuclei were the most.

在所观察的34个染色体畸变细胞中微核数有5种类型(8、9、10、11、12)，其中以微核数10和11的染色体畸变细胞为主。

There is a significant increase with age in the number of micronuclei and missegregation. Nondisjunction of chromosome 21 is much more frequent than loss in vivo and in vitro. No significant difference in nondisjunction between male and female was noted.

在不同年龄正常人外周血淋巴细胞中，微核数随年龄的增加而增加。21号染色体不分离与年龄的关系极显著，无论在体内还是体外，21号染色体不分离远远高于丢失。

Through the comparisons, it was observed that there were extensive conserved relationships of maize QTL affected plant height, row number, and kernels per row with rice QTL affected plant height, tillers per plant, and grains per panicle respectively. 16 of 45 QTL affecting five different maize traits were conserved compared with 12 of 38 QTL affecting five different rice traits, which provided some useful information for locating, isolating and cloning maize QTL by using the rice genomic data.

研究结果表明：在玉米和水稻共线性的染色体区段，控制玉米株高、行数和行粒数的QTL与控制水稻株高、单株有效穗和每穗实粒数的QTL存在广泛的对应关系；在已定位的影响玉米株高等5个性状的45个QTL中，有16个与水稻"汕优63"群体中5个相同或相似性状所定位的38个QTL中的12个具有共线性关系。

Through the comparisons, it was observed that there were extensive conserved relationships of maize QTL affected plant height, row number, and kernels per row with rice QTL affected plant height, tillers per plant, and grains per panicle respectively.

研究结果表明：在玉米和水稻共线性的染色体区段，控制玉米株高、行数和行粒数的QTL与控制水稻株高、单株有效穗和每穗实粒数的QTL存在广泛的对应关系；在已定位的影响玉米株高等5个性状的45个QTL中，有16个与水稻"汕优63"群体中5个相同或相似性状所定位的38个QTL中的12个具有共线性关系。

B chromosomes are also called supernumerary chromosomes, accessorychromosomes or extra chromosomes. They are supernumerary to the standardchromosomes set, which are found in thousands of plants andanimals.

B染色体又称超数染色体、附加染色体或额外染色体，是在生物界中广泛存在的一种特殊染色体。

Using a 3H-labelled 7.3kb fragment of 18S and 28S rRNA g enes as a probe and by chromosomal in situ hybridization,it was demonstrated tha t the autoradiographic silver grains to be located along entire p+ part of the m arker chromosome.

应用3H标记的7.3kb长的rRNA基因探针进行染色体原位杂交，自显影银颗粒沿整个p+区域分布，p+上的银颗粒数是正常近端着丝粒染色体短臂上银颗粒平均数的5倍。

Results In lead poisoning group, the pathological changes in genital glands of mice were obtained; sperm count, linear movement sperm and live sperm rate decreased; the elevated motionless sperm, cacospermia and primary spermatocyte chromosome aberration rate were found. In Haierfu group, the pathological changes in genital glands of mice ameliated to different degree, sperm count, linear movement sperm and live sperm rate elevated, and motionless sperm, cacospermia and primary spermatocyte chromosome aberration rate decreased.

结果 醋酸铅染毒组雄性小鼠的生殖腺有不同程度的病理学改变，精子计数、直线运动精子数、活精子率下降，而静止不动精子数、精子畸形率和初级精母细胞染色体畸变率升高；海尔福治疗组小鼠的生殖腺病理学改变有不同程度的改善，精子计数、直线运动精子数、活精子率有所升高，而静止不动精子数、精子畸形率和初级精母细胞染色体畸变率有所降低。

Chromosomes are also called supernumerary chromosomes, accessorychromosomes or extra chromosomes. They are supernumerary to the standardchromosomes set, which are found in thousands of plants and animals.They are often morphologically distinct from A chromosomes, being smaller and morehighly heterochromatic in most cases.

染色体又称超数染色体、附加染色体或额外染色体，是生物界中广泛存在的、独立于物种染色体组中常规染色体之外的一种特殊染色体。

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。