WordNet
- the final stage of the prophase of meiosis
- perform (a play), especially on a stage; "we are going to stage `Othello" (同)present, represent
- a section or portion of a journey or course; "then we embarked on the second stage of our Caribbean cruise" (同)leg
- a small platform on a microscope where the specimen is mounted for examination (同)microscope stage
- a large platform on which people can stand and can be seen by an audience; "he clambered up onto the stage and got the actors to help him into the box"
- any scene regarded as a setting for exhibiting or doing something; "All the worlds a stage"--Shakespeare; "it set the stage for peaceful negotiations"
- the theater as a profession (usually `the stage'
- plan, organize, and carry out (an event); "the neighboring tribe staged an invasion" (同)arrange
- attend a dance or a party without a female companion
- adult male deer
- getting rid of a stage of a multistage rocket
- travel by stagecoach
- written for or performed on the stage; "a staged version of the novel"
- the first stage of the prophase of meiosis
PrepTutorEJDIC
- (劇場・ホールなどの)『舞台』・on stage 舞台上で・《無冠詞》・off stage 舞台の陰で 《無冠詞》:ステージ;演壇;《the~》演劇;俳優業,演劇(舞台)の仕事 / (事件・活動などの)『舞台』,場所 / (発達などの)『段階』,時期 / (駅馬車などの止まる)駅,宿場;休憩地;(旅行における休憩地間の)旅程,行程 / =stagecoach / (多段ロケットの)段 / 〈劇〉‘を'『上演する』,〈試合など〉‘を'公開する / (特に劇的に)…‘を'実行する,やってのける
- 雄ジカ / 《米話》(社交的な集まりに)婦人を同伴しない男 / 男性用の,男性のみ出席する,男性向けの / 女性を同謀しないで
- 〈U〉足場 / 〈U〉〈C〉(劇の)上演,演出[方法]
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/06/30 02:23:08」(JST)
[Wiki en表示]
The leptotene stage, also known as the leptonema, is the first of five substages of prophase I in meiosis. The term leptonema derives from Greek words meaning "thin threads".[1]:27 A cell destined to become a gamete enters the leptotene stage after its chromosomes are duplicated during interphase. During the leptotene stage those duplicated chromosomes—each consisting of two sister chromatids—condense from diffuse chromatin into long, thin strands that are more visible within the cell plasme. The next stage of prophase I in meiosis is the zygotene stage.[1]:27[2]:353
During this stage, the chromosomes attach themselves by telomeres to the inner membrane of the nuclear envelope. Lateral (axial) elements of the synaptonemal complex are also formed.
References
- ^ a b Snustad, DP; Simmons, MJ (December 2008). Principles of Genetics (5th ed.). Wiley. ISBN 978-0-470-38825-9.
- ^ Krebs, JE; Goldstein, ES; Kilpatrick, ST (November 2009). Lewin's Genes X (10th ed.). Jones & Barlett Learning. ISBN 978-0-7637-6632-0.
English Journal
- Telomeric repeat-containing RNA and telomerase in human fetal oocytes.
- Reig-Viader R, Brieño-Enríquez MA, Khouriauli L, Toran N, Cabero L, Giulotto E, Garcia-Caldés M, Ruiz-Herrera A.SourceDepartament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Campus UAB, Cerdanyola del Vallès 08193, Spain.
- Human reproduction (Oxford, England).Hum Reprod.2013 Feb;28(2):414-22. doi: 10.1093/humrep/des363. Epub 2012 Oct 9.
- STUDY QUESTION: What is the distribution of telomeric repeat-containing RNA (TERRA) and of telomerase in human fetal oocytes SUMMARY ANSWER: TERRA forms discrete foci at telomeres of human fetal oocytes and it co-localizes with both the shelterin component telomeric repeat-binding factor 2 (TRF2) an
- PMID 23049077
- Immunohystochemical analysis of CFTR in normal and disrupted spermatogenesis.
- Teixeira S, Sá R, Grangeia A, Silva J, Oliveira C, Ferráz L, Alves A, Paiva S, Barros A, Sousa M.SourceDepartment of Microscopy, Laboratory of Cell Biology, UMIB , Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto , Porto , Portugal.
- Systems biology in reproductive medicine.Syst Biol Reprod Med.2013 Feb;59(1):53-9. doi: 10.3109/19396368.2012.718851. Epub 2012 Sep 18.
- Cystic fibrosis is the most frequent autosomal recessive disease in the Caucasian population, with an incidence of 1:2500 newborn and a frequency of 1:25. The associated gene is Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) and it encodes the CFTR protein that functions as a chloride (C
- PMID 22989055
Japanese Journal
- Distribution of the sex chromosome during mouse spermatogenesis in testis tissue sections
- OTAKA Kosuke,HIRADATE Yuuki,KOBAYASHI Norio,SHIRAKATA Yoshiki,TANEMURA Kentaro
- Journal of Reproduction and Development advpub(0), 2015
- … FISH analysis revealed the sex chromosomal position during spermatogenesis in each stage of seminiferous epithelia and in each spermatogenic cell. … In the spermatogonia and leptotene spermatocytes, sex chromosomes were distantly positioned in the cell. …
- NAID 130005075502
- 阿部 東,小原 良孝,工藤 貢次
- 昆蟲. ニューシリーズ 5(4), 145-154, 2002-12-25
- ゲンゴロウ類3種(エゾゲンゴロウモドキDytiscus marginalis czerskii;ゲンゴロウモドキDytiscus dauricus;ゲンゴロウCybister japonicus)の精巣を用い,空気乾燥法およびCrozier法により精原細胞,第1および第2精母細胞の染色体を分析した.ゲンゴロウ類における染色体分染の報告は初めてである.前2種はともに2n=37(M I;n=19,M …
- NAID 110008609345
- Homolog pairing and two kinds of bouquets in the meiotic prophase of rye, Secale cereale.
- Noguchi Junko
- Genes & genetic systems 77(1), 39-50, 2002-02
- … Homolog pairing showed the following characteristics: (1) it occurred at the leptotene-zygotene transition stage, prior to the formation of nodules and the synaptonemal complex; … After the homolog pairing stage, two kinds of bouquet configuration were found in zygotene. …
- NAID 10007967736
Related Links
- The leptotene stage, also known as the leptonema, is the first of five substages of prophase I in meiosis. The term leptonema derives from Greek words meaning "thin threads". A cell destined to become a gamete enters the leptotene ...
- ...parent cell is shown to contain a single pair of homologous chromosomes, one member of which is represented in blue (from the father) and the other in red (from the mother). At the leptotene stage the chromosomes appear as ...
Related Pictures
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ディアキネシス期、移動期
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