雌性化 的英文怎麼說
中文拼音 [cíxìnghuà]
雌性化
英文
effemination-
When the gametes are readily distinguished as male or female, other therms may be used such as antheridium, archiegonum, or oogonium
配子很快地分化為雌性或雄性以後,其他的細胞會形成如精子囊,頸卵器,卵囊等器官。The spermatozoids of primitive plants are often positively chemotactic, swimming toward the female organs in response to a chemical secreted by the latter
較原始的植物的游動精子有正向的趨化現象,總是游向由雌性器官所分泌的物質。To explain this, biologists have theorised that these females are mating with males who are genetically superior to their regular mates, thus getting the benefit of parental assistance from a cuckold and good genes from a lothario
為了解釋這種現象,生物學家們理論化地講道,這些雌性與其它一些雄性進行交配是因為它們比自己的正常配偶更具有優秀的遺傳能力,這樣雌性土撥鼠不僅能夠得到雄性土撥鼠對幼畜的照料,同時又能得到洛斯里奧的優良基因。From an evolutionary perspective, monogamy looks good for females and bad for males
從進化的角度來講,單配製有利於雌性,而對雄性卻不然。These bacteria are transmitted through the cytoplasm of eggs and have evolved various mechanisms for manipulating reproduction of their hosts, including cytoplasimic incompatibility ( ci ), parthenogenesis, feminization, male killing, fecundity or fertility modifying etc. wolbachia are common and widespread bacteria infecting 17 % insect population, 17 crustacean species, mites and many nematodes
這些共生菌通過母系遺傳參與調控寄主的多種生殖活動,包括細胞質不親和現象、誘導孤雌生殖現象、雌性化、雄性致死以及調節寄主生殖力等。 wolbachia的分佈十分廣泛,目前已經發現在超過17的昆蟲種群以及17種甲殼綱動物、蟎蟲、線蟲體內發現了它的存在。Using the hprt gene as a positive control, our result suggested that both the testis tissue and the male embryos from which sry transcription can be detected failed to yield any positive results of xist. female embryos at the pronucleus stage and 2 - cell failed to produce any positive result of sry and xist too. while since the 4 - cells period, xist is constantly transcribed until blastocyst stages
然後利用實驗一確定的pcr條件,以hprt為陽性對照,用巢式rt - pcr對小鼠早期胚胎進行xist基因的轉錄分析,結果發現,轉錄sry基因的睪丸組織以及雄性胚胎,從受精卵發育到囊胚的過程中,基本上不轉錄xist基因;不轉錄sry基因的雌性卵母細胞和雌性胚胎,從出現原核開始,到發育至2 -細胞期的過程中, xist基因一直不轉錄,但是,從4 -細胞期開始,一直到孵化前囊胚階段,雌性胚胎都轉錄xist基因。This modification includes : ( 1 ) selecting two important molecules as candidates, ( 2 ) choosing a promiscuous t - cell epitope, and two b - cell epitopes or conserved amino acid sequences from the two important molecules, ( 3 ) connecting them adequately through analysis by the molecule designing software. therefore, the synthetic new antigen may interfere with the process of fertilization by multiple ways and its contraceptive effects may be enhancing. based on the molecule designing methods, the b - lymphocyte cell epitope of sperm / testis specific protein sp17 and cyritestin which interfere with fertilization in mouse, as well as the promiscuous th cell epitope of the ribonuclease ( rnase ) in bovine were selected
本研究以蛋白質分子設計的理論和方法研究避孕疫苗,將sp17和cyritestin關鍵表位和牛核糖核酸酶非選擇性th細胞表位合理組合,獲得新抗原- 35肽序列;並在合成、純化後分別與弗氏佐劑、免疫刺激復合物( iscoms )混合后免疫不同遺傳背景的雌性小鼠,觀察血清和生殖道內的特異性抗體滴度的動態變化、生育力的改變以及免疫后小鼠重要臟器的組織病理學改變:以及在ivf下,新抗原的特異性抗血清對精卵相互作用的影響及抗原在精子表面的特異性定位。Intensifying the problem is the slow reproduction rate of the reptiles. on average, female tuatara mate once every four years, and eggs take between 11 and 16 months to hatch
更糟的是,這種動物繁殖率很低。平均來說,雌性每4年才交配一次,而卵需要11 - 16個月時間孵化。Methods to be applied include extracellular ca2 + influx treatment and intracellular ca2 + measure by transgenical expression of ca2 + fluorescence indicator during fertilization. the former is first to obtain protoplasts of female germination unit in different development stages, then ca2 + lonophore treatment ; the latter is to express transgenically the ca2 + - sensing cameleon protein in torenia fournieri, which allows long term measuring stimulus - induced cytoplasmic ca2 + changes
工作之一首先是檢測受精過程中雌性生殖單位中發生的顯著的細胞學變化,以此作為受精與否的標志;然後經過外源導入鈣( a23187誘導)研究[ ca ~ ( 2 + ) ] _ ( cyt )在受精過程中的這一細胞學事件發生中所起的作用。In addition, eight days after laying eggs, it is found that cellular structures of oviduct near the female genital pores vary greater than those near the ovary during or after spawning eggs
同時比較產卵后第8天近卵巢端和近雌性生殖孔端輸卵管結構,發現近雌性生殖孔端管壁上皮細胞結構變化較近卵巢端大。The effects of the mixture of gqk on hepatocirrhosis in experimental rats
白藜蘆醇對雌性小鼠化學性肝損傷的保護作用First we employed c. w. m2r, a fluorescent fabric brightener, to investigate changes of wall of female germ unit before and after fertilization
通過熒光染色技術,我們首先觀察了自然受精過程中胚囊內雌性生殖單位細胞壁的變化。This review will discuss the role of epithelial sodium channel ( enac ) and the cystic fibrosis transmembrane conductance regulator ( cftr ) in regulating the fluid volume and composition of the reproductive tract and their importance in various reproductive events such as sperm capacitation and implantation
本綜述著重探討了上皮細胞鈉離子通道和囊性纖維化跨膜電導調節體對雌性生殖道內液體容量和成分的調節以及它們在不同生殖事件,比如精子獲能及著床中的重要作用。Their paper in july ' s edition of the journal of animal ecology shows that for marmots, at least, a bit on the side can help a female ' s evolutionary chances no end
她們發表在動物生態學期刊7月份雜志上的論文講道,適量的通姦行為能有助於雌性動物的進化得到無止境的發展,至少對土撥鼠來講是如此。Anti - p21 mouse monoclonal antibody from beijing zhongshan biotechnology anti - mouse or anti - rabbit igg secondary antibody from santa cruz biotechnology ly294002 from sigma biotechnology tritonx - 100 from boehringer mannhein gmbh fluorescein isothiocyanate ( fitc ) conjugated anti - mouse igg antibody was purchased from beijing zhongshan biotechnology hepes from e. metck darmstadt methods superovulation and collection of eggs for superovulation, female kunming mice 4 - 5 week old were injected with pregnant mare serum gonadotropin ( pmsg ), and after 46 - 48 hours with human chorionic ginadotropin. ( hcg ). one - cell fertilized eggs were collected on the next day from oviduct of females
取4一5周齡成熟雌性昆明系小白鼠,腹腔注射pmsg (孕馬血清促性腺激素) 10iu , 46一48小時后腹腔注射hcg (人絨毛膜促性腺激素) 1oiu ,將注射hcg后的雌鼠與8周以上的成熟雄鼠合籠交配,次日檢察陰栓,將查到陰栓的雌鼠處死,取輸卵管于mz培養液中,解剖鏡下撕開壺腹,釋放細胞團,然後用300林歲nil透明質酸酶消化去除顆粒細胞,口控吸管將卵細胞在m :中反復清洗,然後置於孵箱中,根據時間點收集g2期細胞。Chemicals that are believed to affect hormones or mimic female hormones are found in food wrappings, plastic goods and perfumes
被認為會影響荷爾蒙或類雌性荷爾蒙的化學製品被證明是食品包裝紙、塑料製品和香水。Four mechanisms of sperm competition ( sperm stratification, sperm incapacitation, sperm removal and sperm flushing ), four impact factors on paternity ( mating order, number of mated males, mating intervals and cryptic female choice ) and three kinds of male ' s adaptation mechanisms of sperm competition ( morphological adaptations, physiological adaptations and behavioral adaptations ) are reviewed
闡述了精子競爭的概念,綜述了精子層化、精子失能、精子移除和精子沖洗4種昆蟲精子競爭的機制以及雄性在形態、生理和行為上3類避免精子競爭的機制,詳細討論了交配次序、交配雄性數量、交配間隔以及隱秘雌性選擇4個影響父權偏向的因素。Effect of cadmium on body weight and organ coefficient of ovaries in female rats
鎘對雌性大鼠體重變化和卵巢臟器系數的影響Effect of jiangu granula on serum tnf - and tgf - 1 in osteoporosis models of ovariectomized rats
紅景天制劑對雌性大鼠高原去勢后動脈血氣變化的影響It was not clear how soy might prevent cancer, though compounds in soy called isoflavones have estrogen - like effects
至於豆類食品為什麼可以防癌還不清楚,不過大豆中所含的名叫異黃酮的化合物具有雌性激素的作用。分享友人