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centromere n.【生物學】著絲點[粒]。adj.-meric

centroplasm

The right arm vector is constructed with arabidopsis telomere sequence , kanmx4 gene of g418 selection marker and truncated trpi gene . the left arm vector carries arabidopsis telomere sequence , ade2 gene of selection marker , ars sequence , gfp reporter gene , and truncated ura3 gene . retrofitting yac clones carrying arabidopsis centromere segment by homologous recombination with the constructed right and left arm vectors was performed and confirmed in yeast , thus the rudiment of plant artificial chromosome has been formed in yeast cells 與右臂同源重組的載體包含了端粒,用于在酵母中篩選的g418的抗性基因kanmx4和用于與yacdna同源重組的trp1基因片段;華中農業大學碩l學位論文2的3年5月與左臂同源重組的載體包含了端粒,用于在酵母中篩選的a瓏2基因,用于在植物中篩選的份畢萬基因,用于同源重組的乙厲洲3基因片段和人rs片段。

Furthermore , weak signals are found on the centromeres of many chromosomes . unlike 18s , pines have 1 - 2 pairs of 5s rdna sites , except for p . armandi that has four pairs . each pine could be discriminated by its rdna fish karyotype , although most of these pines cannot be distinguished by traditional karyotype analysis 除了華山松ssd3na有旱對位點,馬尾松只有1對位點外,其它松樹的ssrizna位點數目均為2對, 、并且在雙維管柬亞屬植物中有一對屬于弱位點。

( 2 ) the chromosomes of bmn cells showed the typical characteristics of lepidoterati insects . chromosomes of matephase without apparent centromere are short pole - like and pellet - like ( 2 ) bmn細胞的染色體表現為典型的鱗翅目昆蟲的染色體:中期染色體短桿狀或顆粒狀、無明顯的著絲粒。

Chicken tyrp1 exons show 70 . 1 % nucleotide sequence homology with human exons . fish result shows that tyrp1 locates on the long arm of z and w near to the centromere 用熒光原位雜交進行tyrp1的染色體定位,首次將tyrp1定位在z和w染色體長臂近著絲粒的位置。

Centromere the region of the chromosome that contains the kinetochore , the structure that becomes attached to the nuclear spindle during mitosis and meiosis 著絲粒:染色體上包含著絲點的區域,在細胞有絲分裂和減數分裂期間與紡錘體相整合的一種結構。

During anaphase ii the centromeres divide and single chromatids are drawn toward the poles , thus sister chromatids are separated 在減數分裂后期ii ,每條染色體的兩個染色單體隨著著絲點的分裂而彼此分開,由紡錘絲牽向兩極。

The centromere is a specific genetic locus and remains relatively uncoiled during prophase , appearing as a primary constriction 著絲粒是一個特化的遺傳區域,在細胞分裂的早期始終保持解開的結構,所以也叫做主縊痕。

In meiosis it is not until anaphase ii that the centromere divides , the chromatids being termed daughter chromosomes after separation 在減數分裂期間,直到分裂后期ii兩條染色單體才隨著著絲點的分裂而彼此分開。

During anaphase i of meiosis pairs of chromatids still connected at their centromere move to the spindle poles 在減數分裂后期i中,由于紡錘絲的牽引,使成對的同源染色體各自發生分離,并分別向兩極移動。

Following the replication of chromosomes , resultant chromatids remain attached at the centromere 隨著染色體的復制,著絲粒始終連接著形成的兩個染色單體。

During mitosis , sister chromatids remain joined by their centromere until anaphase 在有絲分裂期間,姐妹染色單體在分裂后期之前都是通過著絲點連接的。

Finding the centromer index depends on finding then centromere and the length of then chromosome 著絲粒指數的求解依賴于著絲粒定位和染色體長度。

5s is more adjacent to the centromere if both rdnas are on the same arm 在同一染色體臂時, 18sfi3na在臂的遠端。

Each chromosome consists of two chromatids held together by the centromere . 每個染色體由兩個染色單體所組成,它們被一個著絲點聯結在一起。

The duplicates are attached to each other at a constricted region called the centromere . 對偶體彼此相連于稱為著絲粒的縮小的區域。