染色體絲 的英文怎麼說
中文拼音 [rǎnshǎitǐsī]
染色體絲
英文
chromonema- 染 : Ⅰ動詞1 (用染料著色)dye 2 (感染) catch [contract] (a disease) 3 (沾染) acquire (a bad hab...
- 色 : 色名詞[口語] (顏色) colour
- 體 : 體構詞成分。
- 染色體 : [生物學] chromosome染色體疾病 chromosomal disorders; 染色體異常 chromosome abnormality
- 染色 : dye; dyeing; colouration; tintage; tinging; dyschroia; colouring; colour; [半] decoration染色不足...
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During anaphase i of meiosis pairs of chromatids still connected at their centromere move to the spindle poles
在減數分裂後期i中,由於紡錘絲的牽引,使成對的同源染色體各自發生分離,並分別向兩極移動。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。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。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 anaphase ii the centromeres divide and single chromatids are drawn toward the poles, thus sister chromatids are separated
在減數分裂後期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。Chromomere a small beadlike deeply staining structure seen in chromosomes during prophase of mitosis and meiosis
染色粒:在有絲分裂及減數分裂的前期存在於染色體上的小念珠狀的著色深的結構。140min, chromosomes of the daughter cells are situated at metaphase of the second karyokinesis, while the daughter cells do n ' t separate
120min ,染色體處于有絲分裂末期,分裂溝形成,受精卵徑裂為二細胞。受精140min ,再徑裂為4細胞。There are two main types of nuclear division : mitosis, which results in daughter cells identical to their parents ; and meiosis ( reduction division ), which produces daughter cells which have half the number of chromosomes of their parent cells, and in which the genetic material has been recombined
核分裂有兩種主要的類型:一種為有絲分裂,即子代細胞與親本相同,另一種為減數分裂,其產生的子細胞所含的染色體數為親本染色體數的一半,基因在分裂過程中發生了重組。These chromosomes are so simple that some geneticists prefer to call them chromonemes.
這些染色體結構簡單,許多遺傳學家喜歡稱它們為染色絲。( 3 ) the chromosomes obtained by air - drying and chromosomes from the silkworm genital gland are similar in shape. but the numbers and the length of the chromosomes are obviously different. the chromosomes obtained from the genital gland have little difference in length, while the chromosomes of bmn cell are different in length very much
但是,在染色體的數目上有顯著的差異。另外,染色體間的長短差別也非常明顯。由家蠶生殖腺得到的減數分裂中期染色體和胚胎得到有絲分裂的中期染色體,其染色體長短差異不明顯,而binn細胞的中期染色體長短非常不一致,差異非常顯著。Cells only the chromatin or chromosomes are heavily stained, the other components are bleached. after the chromosomes are stained by nama - ur, we have observed that the highest order structure of chromosomes is helical ; while the secondary structure is radically folding. the dna fibres with a diameter of 2530 nm have radically folded into chromatid fibres in a diameter of approximately 250 nm
染色體經dna特異染色后,觀察到其最高層次結構是螺旋的,而次級結構存在著放射環結構,即由直徑為2530 nm的dna纖絲放射狀折疊排列成約250 nm左右的染色單體絲染色單體絲進一步螺旋形成中期染色體結構。There are 4 pairs central - region - kinomere chromosomes and 4 pairs subcentral - region - kinomere chromosomes and only one pair telochromosomes in one cell
4對為中部著絲點染色體, 4對為近中部著絲點染色體,只有1對近端部著絲點染色體。In this paper, the genetic diversity of qinghai - lake naked carps was studied for the first time by methods of chromosome karyotype, protein ( isomzy ) electrophoresis and mtdna rflp. the results of chromosome karyotype indicated that : ? the diploid chromosome number of qinghai - lake nakked carp was 2n = 92 that comprised of 18 metacentric chromosomes, 18 submetacentric chromosomes, 16 telocentric chromosomes and 40 acrocentric chromosomes, and the karyotype formula was 18nvh8snvh6st + 40t, nf = 128
染色體核型研究結果表明;青海湖裸鯉染色體總數2n = 92條,由18條中著絲粒染色體、 18條近中著絲粒染色體、 16條近端著絲粒染色體和40條端著絲粒染色體組成,其核型式為: 18m + 18sm + 16st + 40t , nf = 128 。( 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。The reasults are summed up as following : ( 1 ) the more metaphase chromosomes of bmn cells and moderately contraction can be obtained by air - drying after cultured at the colchicine concentration 1. 0 u g / ml, 28 " c, for 6 - 9h
用空氣乾燥法和培養細胞貼片法對bmn細胞的染色體和有絲分裂進行研究發現: ( 1 )採用空氣乾燥法制備bmn細胞的染色體,在終濃度0 . 1ug / ml的秋水仙素28培養6 9h條件下可得到較多中期分裂相,染色體的凝集也比較適中。The reasults are summed up as following : 1 the study on chromosomes and mitoses of bmn cells the cell line, bmn, is a silkworm cell line widely used in silkworm molecular genetics, cell engineering, gene engineering and baculovirus expression system but whose genetics and cytobiology studies are nearly untouched. the chromosomes and mitoses of the bmn cells are researched by the air - drying method and culturing cells on cover glasses
同時,還通過原代培養實驗對新的家蠶胚胎細胞系的建立進行了探索和嘗試,並對家蠶胚胎原代培養過程中出現的細胞和組織類型進行了觀察、探討與研究。 1bmn細胞有絲分裂及染色體研究bmn細胞是家蠶分子遺傳學,細胞工程、基因工程和桿狀病毒表達系統中廣泛應用的家蠶細胞,但其遺傳學和細胞生物學背景知之甚少。To research melanin synthesis and its accumulation mechanism, we constructed a silky bacterial artificial chromosome ( bac ) library. the library was used to study the two genes on chicken chr
為研究絲羽烏骨雞體內黑色素合成和沉積的分子機制,本研究構建了絲羽烏骨雞的基因組細菌人工染色體( bac )文庫。Endomitosis the duplication of chromosomes without division of the nucleus, causing polyploidy and leading to an increase in nuclear and cytoplasmic volume
核內有絲分裂:在細胞核不分裂的情況下進行染色體復制,產生多倍體並使細胞體積增大的一種有絲分裂形式。The first and second longest chromosomes are important in karyotype analysis and most of which are metacentric chromosome and submetacentric chromosome in lilium. hybrids were distinguishable by the existence and position of secondary constriction and arm ratio
百合的第一對和第二對染色體多為中著絲粒和近中著絲粒染色體,可以根據次縊痕有無與位置及臂比鑒定雜種。It is likely that telocentric chromosomes with minute sizes may be ancestral types of the vertebrate chromosomes. 2
從文昌魚染色體的核型看,似乎形態較小的端部著絲粒染色體是脊椎動物染色體的遠祖。分享友人