倍性

The number of theromosomes per nucleus is characteristic of the species except in aneuploid plants.

除了少数非整倍性的植物，细胞核内染色体的数目是物种的重要特征。

Objective: To explore the reliability of the method PRINS for detection of spermic aneuploidy .

目的：探索应用引物原位标记技术分析精子染色体非整倍性的可靠性。

Aneuploidy in human population is a serious genetic problem.

在人类群体中非整倍性是个严重的遗传问题。

Objective:To study the centromeric dots variation of HEC1B cells and its relationship with aneuploidy aberration.

中文摘要：目的：探讨人子宫内膜癌细胞HEC1B染色体着丝粒点的变异与其非整倍性畸变的关系。

Cleavage velocity and fragment amount of embryo were related to chromosome 21 aneuploidy.

胚胎卵裂的速度和胚胎碎片的多少与胚胎内部染色体的非整倍性存在着相关性。

Objective To use a rapid method by PRINS for detection of spermic aneuploidy.

目的利用引物原位标记技术快速检精子染色体非整倍性。

Polyploidy and autogamy are important evolutionary phenomena within the genus.

多倍性和自花受精为本属的重要的进化的现象。

The results showed that the cluster analysis indicated that ploidy was highly correlated to the number of chloroplast in guard cell and the length of stomata.

结果表明，叶绿体数目和气孔长鉴定倍性的可靠性较高，其中，苹果气孔长误判率最低，为6.67 ％；梨气孔保卫细胞叶绿体数目误判率最低，为12.5 ％。

It was identified to be a haploidy recombinant by comparing its colonic characteristics, conodia size and DNA content in conidia with those of its parents.

经菌落形态观察、分生孢子大小及其DNA含量测定，认定它为单倍性重组体。

2N gametes are the result of meiotic mutation during micro- and mega-sporogenesis that bear the sporophytic rather than the gametophytic chromosome number. This paper reviewed the genetic markers including the morphologic, cytological, isozymes and DNA markers, which have been employed in the generation, inheritance, heterozygosity and marker-assisted breeding of 2n gametes based on the frequency of large pollen grains, cytological analyses, unexpected occurrence of polyploidy progeny and the associations between parents and progenies.

文章综述了植物2n配子发生及其遗传标记研究现状，论述涉及有关形态学标记、细胞学标记、同工酶标记乃至DNA标记等遗传标记在2n配子研究中的应用，指出通过花粉形态观察、大小孢子母细胞减数分裂行为观察、杂种后代倍性鉴定以及亲子分子标记相关分析等，对2n配子发生、2n配子遗传类型与杂合性以及2n配子在育种实践中的有效性等进行研究。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。