核的英文,英語(yǔ),nucleus是什么意思,nucleus中文翻譯,nucleus怎么讀、發(fā)音、用法及例句
?nucleus
nucleus 發(fā)音
英:[?nu?kli?s] 美:[?nju?kli?s]
英: 美:
nucleus 中文意思翻譯
常見(jiàn)釋義:核
n.核,核心;原子核
nucleus 短語(yǔ)詞組
1、abducens nucleus ─── [醫] ─── [外]展神經(jīng)核
2、asphaltene nucleus ─── [機] 瀝青質(zhì)核
3、benzene nucleus ─── [醫] 苯核
4、basal nucleus ─── [醫] 下橄欖核, 基底神經(jīng)節
5、Burdach's nucleus ─── [醫] 布爾達赫氏核, 楔束核
6、caudal nucleus ─── [醫] 動(dòng)眼神經(jīng)核
7、amygdaloid nucleus ─── [醫]杏仁核:同corpus amygdaloideum
8、auditory nucleus ─── [醫] 聽(tīng)神經(jīng)核
9、Beclard's nucleus ─── [醫] 貝克拉爾氏核(胚胎股骨骺的骨化中心)
10、acyclic stem-nucleus ─── [化] 無(wú)環(huán)母核(無(wú)環(huán)化合物的母鏈)
11、Bechterew's nucleus ─── [醫] 別赫捷列夫氏核, 前庭神經(jīng)上核
12、atomic nucleus ─── [計] 原子核 ─── [化] 原子核
13、Balbiani's nucleus ─── [醫] 巴比阿尼氏核, 卵黃核
14、Blumenau's nucleus ─── [醫] 布路門(mén)奧氏核(楔核外側部)
15、aromatic nucleus ─── [化] 芳香環(huán)
16、caudate nucleus ─── [醫] 尾狀核
17、alicyclic stem-nucleus ─── [機] 脂母核
18、accessory auditory nucleus ─── [醫] 聽(tīng)神經(jīng)副核
19、anthracene nucleus ─── [化] 蒽環(huán)
nucleus 常用詞組
cell nucleus ─── 細胞核
nucleus pulposus ─── 髓核
atomic nucleus ─── n. [化]原子核
nucleus 詞性/詞形變化,nucleus變形
復數--nuclei。
nucleus 相似詞語(yǔ)短語(yǔ)
1、nucleal ─── 核的
2、nucleolus ─── n.核;[細胞]核仁;細胞核
3、nucle- ─── 核液
4、nucleins ─── n.核蛋白質(zhì)
5、nucleons ─── n.[高能]核子
6、nucleuses ─── 核
7、nucellus ─── n.[植]珠心
8、nuclease ─── n.[生化]核酸酶
9、nuclear ─── adj.原子能的;[細胞]細胞核的;中心的;原子核的
nucleus 常見(jiàn)例句(雙語(yǔ)使用場(chǎng)景)
1、In nuclear resonance, the nucleus is disturbed by motions. ─── 在核共振中核子受到運動(dòng)的干擾。
2、The spontaneous firings of nucleus locus coeruleus (LC) were recorded. ─── 它們可為自然痛刺激所興奮,可被嗎啡等鎮痛劑所抑制。
3、The atom is made up of a nucleus with negative electrons revolving around it. ─── 原子是由原子核和繞核旋轉的若干負電子組成。
4、DISCUSSION The non suture ECCE is effective method nucleus cataract. ─── [討論]無(wú)縫合囊外摘除術(shù)是治療硬核性白內障的有效方法。
5、The sum of the number of neutrons and protons in an atomic nucleus. ─── 原子核中中子和質(zhì)子數之和。
6、The nutritive tissue that is derived from the nucleus and surrounds the embryo of the seed. ─── 外胚乳包在種子胚芽外,產(chǎn)生于細胞核的營(yíng)養性組織
7、Each tiny atom of any element contains a nucleus around which rotate a certain number of electrons . ─── 任何元素每個(gè)微小原子都含有一個(gè)周?chē)幸欢〝盗康碾娮永@其旋轉的原子核。
8、The total angular momentum of an atomic nucleus. ─── 原子核的角動(dòng)量之總和。
9、What is the "recoil" speed of the nucleus? ─── 原子核的“反沖”速率是多少?
10、Supracapsular phacoemulsification with chopping nucleus technique. ─── 囊袋上劈核白內障超聲乳化術(shù)。
11、The outermost electron is shielded from the nucleus. ─── 原子核對最外層電子的作用受到屏蔽。
12、Shrink of cytoplasm at stage of central nucleus microspore.21. ─── 單核中央期小孢子細胞質(zhì)收縮。
13、As spermatid nucleus elongates, the chromatin fibers are unwound and join together to form ribbon structure. ─── 當精細胞核向長(cháng)形轉變時(shí),染色質(zhì)纖維解旋并結合在一起形成緞帶結構。
14、As a comet gets closer to the sun, the ice on the surface of the nucleus begins turning into gas, forming a cloud known as the coma. ─── 當彗星接近太陽(yáng)時(shí),慧核表面的冰便升華成氣體,形成了我們稱(chēng)為“彗發(fā)”的霧狀結構。
15、They do not have a nuclear membrane and so no discrete nucleus. ─── 原核體細胞沒(méi)有核膜,因此也沒(méi)有界限分明的細胞核。
16、The path of a body in a field of force surrounding another body; for example, the movement of an atomic electron in relation to a nucleus. ─── 力場(chǎng)軌道一物體在力場(chǎng)中環(huán)繞另一物體運行路徑,例如電子在原子核周?chē)倪\動(dòng)
17、In every cell there is a part like a little ball. This is the nucleus, which organizes the work of the cell. ─── 在每一個(gè)細胞內,都有一個(gè)像球一樣的部分,這叫細胞核,它組織細胞內的一切活動(dòng)。
18、Nucleoli (one or two per nucleus) are stained blue with hematoxylin. ─── 一兩個(gè)核仁被蘇木精染成藍色。
19、Vacuolation of cytoplasm at stage of central nucleus microspore. 20. ─── 19.單核中央期小孢子細胞質(zhì)液泡化。
20、A nucleus can have only one Y -chromosome. ─── 一個(gè)核可以?xún)H有一個(gè)y染色體。
21、The family size has become gradually smaller and nucleus family is becoming the major form of modern Chinese families. ─── 家庭規模逐漸縮小,核心家庭正在成為當代中國家庭的主要形式。
22、The family is the nucleus of the community. ─── 家庭是社會(huì )的核心。
23、It constitutes the essential nucleus of the self and the access to it in our patients is often attained only with the greatest difficulty. ─── 它組成自我的基本核心,從我們父母身上接近它,往往是費盡困難,才能獲得。
24、The nucleus of an atom consists of neutrons protons and other particles. ─── 原子核由中子、質(zhì)子和其他粒子構成。
25、Electron in an atom move round the nucleus the way the planet move round the sun. ─── 原子里的電子圍繞著(zhù)原子核轉就像行星圍繞著(zhù)太陽(yáng)轉一樣。
26、Electrons in atoms are visualized as diffuse clouds surrounding the nucleus. ─── 原子中的電子可以想像為彌漫在原子核周?chē)碾娮釉啤?/p>
27、Atoms are made from a nucleus of protons and neutrons and a cloud of electrons. ─── 原子是由質(zhì)子和中子組成的原子核與圍繞原子核的電子云構成的。
28、The atomic nucleus itself is far from insignificant in the grand scheme of things. ─── 原子核本身對事物的重大結構遠不是微不足道的。
29、In a spherical nucleus, the coupling term implies an interweaving of the quadrupole and dipole motion. ─── 對球形核中的耦合項意味著(zhù)四級運動(dòng)和偶極運動(dòng)間的交織。
30、The results show that the vaterite is usually distributed around the nucleus and few on the surface of the pearl samples. ─── 結果顯示,其多分布于珍珠珠核部位,也可出現在珍珠表面。
31、He was the first to observe and name the nucleus of cells and to recognize its importance. ─── 他是首位發(fā)現并命名細胞核,而且認識到其重要性的科學(xué)家。
32、Also the plasmutocyte is divided into trophic nucleus hematocyte and micronuclei hematocyte. ─── 其中漿血胞可分為大核漿血胞和小核漿血胞兩種。
33、Disintegration of cytoplasm at stage of central nucleus microspore. 22. ─── 21.單核中央期小孢子細胞質(zhì)開(kāi)始解體。
34、Vacuolation of cytoplasm at stage of central nucleus microspore.20. ─── 單核中央期小孢子細胞質(zhì)液泡化。
35、Pronounced nucleoli were observed in each nucleus. ─── 劍尾魚(yú)肝細胞具單核,核仁顯著(zhù);
36、The monokaryotic microspore had a big nucleus and abundant organelles. ─── 單核小孢子時(shí)期,細胞核大,細胞器豐富。
37、Accessory nucleus of oculomotor n. ─── 動(dòng)眼神經(jīng)副核。
38、The nucleus of an atom consists of neutrons, protons and other particles. ─── 原子核由中子、質(zhì)子和其他粒子組成。
39、Within a nucleus, it can acquire an infinite lifetime. ─── 在原子核內,中子可以獲得無(wú)限長(cháng)的壽命。
40、Either extremity of the main axis of a nucleus, a cell, or an organism. ─── 卵細胞的極細胞核、細胞或有機體的主軸兩端的任一端
41、The other male gamete fuses with the secondary nucleus, forming the primary endosperm nucleus. ─── 另一個(gè)雄配子和次生核結合形成初生胚乳核。
42、He's the nucleus of the team. ─── 他是全隊的核心。
43、A nucleus is about one billionth the size of an atom. ─── 原子核的體積大約是原子的一萬(wàn)億分之一。
44、During the late microspore stage, a big vacuole formed and the nucleus was forced to move to peripheral region. ─── 當小孢子被釋放出后,鈣顆粒開(kāi)始特異性積累在正在形成的花粉外壁中,尤其在萌發(fā)孔的部位聚集了大量的鈣顆粒。
45、Esthetically,its nucleus is the relationship between ideal and friendliness. ─── 從美學(xué)角度研究禮樂(lè ),它的核心是美與善的關(guān)系。
46、Few as they are, being the nucleus, they have considerable power to manipulate. ─── 因為他們是右翼骨干,人數雖少,神通卻是相當大的。
47、Either extremity of the main axis of a nucleus,a cell,or an organism. ─── 卵細胞的極細胞核、細胞或有機體的主軸兩端的任一端。
48、Orbiting the nucleus are negatively charged particles called electrons. ─── 圍繞核子旋轉的是帶負荷的粒子,即電子。
49、It lies close to the nucleus in nondividing cells. ─── 在不分裂的細胞中靠近細胞核。
50、Intellectuals are the nucleus of the society. ─── 他們是國家的支柱。
51、Mucus type: the cells of this type produce a lot of mucus which presses the nucleus into a ring shape. ─── 粘液型:這種類(lèi)型的細胞產(chǎn)生大量的粘液將細胞核擠壓成環(huán)狀。
52、The atomic center is the nucleus, and the electronics winds revolve it. ─── 原子的中央是原子核,電子繞著(zhù)它旋轉。
53、During the disintegration energy is released from the nucleus. ─── 在衰變時(shí)由原子核釋放出能量。
54、Brain studies suggest that there is impairment serotonin function in neurons leading to the suprachiasmatic nucleus. ─── 大腦研究表明引導視交叉上核的神經(jīng)元5-羥色胺功能有損傷。
55、The energy equivalent of the mass discrepancy in a nucleus is called binding energy. ─── 與原子核中的質(zhì)量差相對應的能量叫做原子核的結合能。
56、Every nucleus lives in splendid isolation. ─── 原子核處于極佳的隔離狀態(tài)。
57、NOS/ER double-labeled neurons mostly distributed in the medial dorsal and lateral dorsal of supraoptic nucleus. ─── NOS與ER雙染**神經(jīng)元主要分布在下丘腦視上核背內側和背外側部。
58、A spherical or oval nucleus is near the centre of the cell. ─── 在細胞的近中央處,有一個(gè)圓形或卵圓形核。
59、Persisting in the personnel-based idealism proved principle and nucleus. ─── 堅持以人為本是科學(xué)發(fā)展觀(guān)的本質(zhì)和核心。
60、The residual nucleus will, in general, undergo a radioactive transformation. ─── 剩余核一般說(shuō)來(lái)將發(fā)生一次放射性衰變。
61、A nucleus is about one thousand billionth the size of an atom. ─── 原子核的體積大約是原子的一千兆分之一。
62、A nucleus and the electrons whirling around it make up an atom. ─── 一個(gè)原子核及圍繞它旋轉的電子組成一個(gè)原子。
63、But sperm don't have elaborate cells, just a tightly packed nucleus and a tail for swimming to the egg. ─── 但是精子沒(méi)有明確的細胞結構,只有一個(gè)緊密組裝的細胞核以及一個(gè)便于游動(dòng)到卵細胞的尾巴。
64、Existing or acting outside the nucleus of an atom. ─── 原子核外的出現或行動(dòng)于原子核外的
65、Cummings and Liko Soules-Ono form the nucleus of the team. ─── 卡明斯和萊克·索爾斯-奧諾形成了這個(gè)團隊的核心。
66、The nucleus is removed from the egg cell. ─── 細胞核已經(jīng)從卵細胞中移除。
67、Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts. ─── 大多數連于芳核能被直接取代的基團僅限于重氮鹽。
68、Just as the sun is the central body of the solar system, so the nucleus is the CORE of the atom. ─── 正象太陽(yáng)是太陽(yáng)系的中心天體一樣,原子核是原子的核心。
69、Median raphe nucleus did not show the decreased SERT labeling. ─── 中縫正中核SERT標記強度未見(jiàn)顯著(zhù)降低。
70、China Nucleus Industry Construction Corp. ─── 中國核工業(yè)建設集團公司。
71、The nucleus of an egg cell was removed and replaced with the nucleus from a cell of the animal to be cloned. ─── 就是將卵細胞的細胞核去除,然后用預備克隆的動(dòng)物的細胞核取而代之。
72、An atom contains a tiny heavy nucleus. ─── 一個(gè)原子含有一個(gè)微小而重的核。
73、Primary endosperm nucleus and the degenerating antipodal cells;8. ─── 7.初生胚乳核和開(kāi)始退化的反足細胞;
74、For the couple's second child,the mother's nucleus could be used in the same procedure. ─── 如果這對夫婦還想要第二個(gè)孩子的話(huà),母親的細胞核也可以用于同樣的程序中。
75、The dorsal raphe nucleus and auditory and vestibular pathway. ─── 與聽(tīng)覺(jué)、前庭系統相關(guān)的中縫背核神經(jīng)通路研究進(jìn)展。
76、The energy required to separate particles from a molecule or atom or nucleus,equals the mass defect. ─── 為從一個(gè)分子或原子或核子中分離顆粒所必須的能量,等同于質(zhì)量虧損。
77、Neutrons and protons are bound together in the nucleus of an atom. ─── 在一個(gè)原子的核內,中子和質(zhì)子聚合在一起。
78、At the centre of an atom is a nucleus, around which electrons revolve . ─── 原子的中央是原子核,電子繞著(zhù)它旋轉。
79、He also recognized the significance of the nucleus. ─── 另一方面他也深刻認識到細胞核的非凡意義。
80、The tube nucleus disintegrates as the pollen tube penetrates the nucellus. ─── 另外的粉管核會(huì )在花粉管穿過(guò)珠心時(shí)發(fā)生分裂。
81、The stability of a nucleus can be described in terms of a number of parameters. ─── 原子核的穩定度可以用若干參數來(lái)描述,其中一個(gè)參數是核粒子的結合能。
82、An atom has two parts, the nucleus and the electrons. ─── 一個(gè)原子分兩部分,一部分叫原子核,一部分叫電子。
83、The atom has a nucleus at its core. ─── 在原子的中心有一個(gè)原于核。
84、It typifies the size of a nucleus. ─── 它表征了原子核的大
85、The nebulous, luminescent cloud containing the nucleus and constituting the major portion of the head of a comet. ─── 彗發(fā)星云狀的發(fā)光云體包括彗核、彗星頭部的重要部分
86、The atom has a central part called nucleus. Circling the nucleus are electrons. ─── 原子有一個(gè)中心部分,稱(chēng)為原子核。環(huán)繞原子核運動(dòng)的是電子。
87、The zygote has a fixed complement of genetic information in its nucleus. ─── 合子的核中具有固定的全部遺傳信息。
88、Disintegration of cytoplasm at stage of central nucleus microspore.22. ─── 單核中央期小孢子細胞質(zhì)開(kāi)始解體。
89、It took a long time for men to learn how to separate the electrons from their nucleus. ─── 人們花費很長(cháng)時(shí)間才學(xué)會(huì )怎樣把電子同原子核分開(kāi)。
原核生物和真核生物DNA復制過(guò)程
原核生物與真核生物dna復制共同的特點(diǎn):
1分為起始、延伸、終止三個(gè)過(guò)程;
2必須有提供3’羥基末端的引物;
3親代dna分子為模板,四種脫氧三**酸核苷(dntp)為底物,多種酶及蛋白質(zhì)
dna拓撲異構酶、dna解鏈酶、單鏈結合蛋白、引物酶、
dna聚合酶、rna酶以及dna連接酶等.
4一般為雙向復制、半保留復制、半不連續復制.
原核生物與真核生物dna復制不同的特點(diǎn):
1真核生物為線(xiàn)性dna,具有多個(gè)復制起始位點(diǎn),形成多個(gè)復制叉,dna聚合酶的移動(dòng)速度較原核生物慢.原核生物為一般為環(huán)形dna,具有單一復制起始位點(diǎn).
2真核生物dna復制只發(fā)生在細胞周期的s期,一次復制開(kāi)始后在完成前不再進(jìn)行復制,原核生物多重復制同時(shí)進(jìn)行.
3真核生物復制子大小不一且并不同步.
4原核生物有9-mer和13-mer的重復序列構成的復制起始位點(diǎn),而真核生物的復制起始位點(diǎn)無(wú)固定形式.
5真核生物有五種dna聚合酶,需要mg+.主要復制酶為dna聚合酶δ(ε),引物由dna聚合酶α合成.原核生物只有三種,主要復制酶為dna聚合酶iii.
6真核生物末端靠端粒酶補齊,而原核生物以多聯(lián)體的形式補齊.
7真核生物岡崎片段間的rna引物由核酸外切酶mf1去除,而原核生物岡崎片段由dna聚合酶i去除.8真核生物dna聚合酶γ負責線(xiàn)粒體dna合成.9真核生物dna聚合酶δ的高前進(jìn)能力來(lái)自于rf-c蛋白與pcna蛋白的互相作用.原核生物dna聚合酶iii的前進(jìn)能力來(lái)自與γ復合體(夾鉗裝載機)與β亞基二聚體(β夾鉗)的相互作用。
原核生物和真核生物DNA復制過(guò)程
原核生物是沒(méi)有成形的細胞核的。DNA不與蛋白質(zhì)結合,直接暴露在細胞中。而真核生物DNA是與蛋白質(zhì)結合形成雙螺旋的染色質(zhì)或染色體。所以真核生物進(jìn)行DNA復制時(shí),先要把雙螺選結構解開(kāi),然后進(jìn)行DNA復制。因為真核生物的DNA教長(cháng),包含的遺傳信息教多,所以它們進(jìn)行的是多點(diǎn)復制,就是在同一條DNA上,有多個(gè)復制點(diǎn)可以同時(shí)進(jìn)行復制。而原核生物一般只是只有一個(gè)復制起點(diǎn),而且它們DNA長(cháng)度教短,所以復制速度較真核生物快。
原核生物和真核生物DNA復制的不同點(diǎn)
1) 原核生物基因組DNA有1個(gè)復制子,真核生物有多個(gè)復制子
2) 原核生物比真核生物DNA復制速度快
3) 原核生物與真核生物DNA聚合酶不同
4) 真核生物端粒DNA的合成由端粒酶催化合成的,原核生物不存在這種情況。
我解釋下第4點(diǎn),因為真核生物的DNA復制必須從啟動(dòng)子開(kāi)始復制,而啟動(dòng)子之前是不能復制的,所以每次復制后,真核生物的DNA都會(huì )“變短”??茖W(xué)家認為這與人的衰老有關(guān),所以把不能復制的那段就做“端粒DNA”,但是我們知道,癌細胞是可以無(wú)限增殖的,原因在于它可以合成“端粒酶”使得端粒DNA可以得到修復,從而不會(huì )死亡。而原核生物是不具有這個(gè)問(wèn)題的,因為它們是從頭開(kāi)始復制,不會(huì )有端粒DNA。
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