| 영문 | conjoined twin | 한글 | 결합쌍둥이 |
|---|---|---|---|
| 설명 | 두 개의 잘 발육된 개체가 여러 정도의 표면적 결합에 의해서 붙어있는 기형이다. 대부분은 얼굴과 얼굴을 마주보는 유합으로 가슴과 배가 유착된 형태이다. 보통 신체의 앞면, 옆면 또는 시상면에서 결합하고 있다. 또 신체의 극히 일부분만 붙어 있는 것부터 거의 완전히 붙어 있는 것까지 정도가 다양하다. 작고 불완전하게 발육된 개체인 기생체가 보다 크거나 보다 완전하게 발육된 개체인 자생체에 부착되어 있는 경우도 있다. |
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| bHLH | basic helix-loop-helix |
|---|---|
| bHLH-ZIP | basic helix-loop-helix-leucine zipper |
| HLH | helix-loop-helix; hemophagocytic lymphohistiocytosis |
| TTS | tarsal tunnel syndrome; temporary threshold shift; through the scope; through the skin; tilt table s... |
| HD | Haab-Dimmer [syndrome]; Hajna-Damon [broth]; Hansen disease; hearing distance; heart disease; helix ... |
| TTTS | Twin-twin transfusion syndrome |
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| TTTS | twin-to-twin transfusion syndrome |
| HLH | B)-helix-loop-helix |
| bHLH | Basic Helix-Loop-Helix |
| bHLH | Basic region helix-loop-helix |
| twin helix | The helical structure assumed by two strands of deoxyribonucleic acid, held together throughout their length by hydrogen bonds between bases on opposite strands, referred to as Watson-Crick base pairing. See: base pair. Synonym: DNA helix, double helix, twin helix. (05 Mar 2000) |
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| twin-twin transfusion | Direct vascular anastomosis, arterial or venous, between the placental circulations of twins. (05 Mar 2000) |
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| helix loop helix | <molecular biology> A motif associated with transcription factors, allowing them to recognise and bind to specific DNA sequences. Two _ helices are separated by a loop. Examples: myoblast MyoD1, c myc, Drosophila genes daughterless, hairy, twist, scute, achaete, asense. Not the same as helix turn helix. (18 Nov 1997) |
| helix-loop-helix motifs | A group of 20-residue peptides characterised by two alpha helices separated by a non-helical segment. These recurring supersecondary structural patterns are found in many sequence-specific DNA-binding proteins. (12 Dec 1998) |
| helix turn helix | <molecular biology> A motif associated with transcription factors, allowing them to bind to and recognise specific DNA sequences. Two amphipathic _ helices are separated by a short sequence with a _ sheet. One helix lies across the major groove of the DNA, while the recognition helix enters the major groove and interacts with specific bases. An example in Drosophila is the homeotic gene fushi tarazu, that binds to the sequence TCAATTAAATGA. Not the same as helix loop helix. (18 Nov 1997) |
| helix-turn-helix motifs | The first DNA-binding protein motif to be recognised. Helix-turn-helix motifs were originally identified in bacterial proteins but have since been found in hundreds of DNA-binding proteins from both eukaryotes and prokaryotes. They are constructed from two alpha helices connected by a short extended chain of amino acids, which constitute the "turn." the two helices are held at a fixed angle, primarily through interactions between the two helices. (12 Dec 1998) |
| placental parasitic twin | Underdeveloped twin of allantoidangiopagous twin; joined by umbilical vessels. Synonym: placental parasitic twin. Origin: omphalo-+ G. Sitos, food (05 Mar 2000) |
| dizygotic twin | <embryology> Twins which are the result of two separate zygotes, or two separate eggs fertilized by two separate sperm. They can be any combination of sexes (two males, two females, one of each). Compare: monozygotic twins. (09 Oct 1997) |
| twin | 1. Being one of two born at a birth; as, a twin brother or sister. 2. Being one of a pair much resembling one another; standing the relation of a twin to something else; often followed by to or with. 3. <botany> Double; consisting of two similar and corresponding parts. 4. <chemistry> Composed of parts united according to some definite law of twinning. See Twin. Twin boat, or Twin ship, a vessel whose deck and upper works rest on two parallel hulls. Twin crystal. See Twin. <botany> Twin flower, a delicate evergreen plant (Linnaea borealis) of northern climates, which has pretty, fragrant, pendulous flowers borne in pairs on a slender stalk. Twin-screw steamer, a steam vessel propelled by two screws, one on either side of the plane of the keel. Origin: OE. Twin double, AS. Getwinne two and two, pl, twins; akin to D. Tweeling a twin, G. Zwilling, OHG. Zwiniling, Icel. Tvennr, tvinnr, two and two, twin, and to AS. Twi- two. See Twice, Two. 1. One of two produced at a birth, especially by an animal that ordinarily brings forth but one at a birth; used chiefly in the plural, and applied to the young of beasts as well as to human young. 2. <astronomy> A sign and constellation of the zodiac; Gemini. See Gemini. 3. A person or thing that closely resembles another. 4. <chemistry> A compound crystal composed of two or more crystals, or parts of crystals, in reversed position with reference to each other. The relative position of the parts of a twin may be explained by supposing one part to be revolved 180 deg about a certain axis (called the twinning axis), this axis being normal to a plane (called the twinning plane) which is usually one of the fundamental planes of the crystal. This revolution brings the two parts into parallel position, or vice versa. A contact twin is one in which the parts are united by a plane surface, called the composition face, which is usually the same as the twinning plane. A penetration twin is one in which the parts interpenetrate each other, often very irregularly. Twins are also called, according to form, cruciform, geniculated, etc. Source: Websters Dictionary (01 Mar 1998) |
| twin cone | Two retinal cone's fused together. (05 Mar 2000) |
| twin crystal | Two crystal's that have grown together along a common face. (05 Mar 2000) |
| twin method | A general means of genetic analysis that capitalises on the fact that while twins have the same age and the same intrauterine environment, identical (monozygotic) twins have the same genotype but dizygotic twins are no more alike than sibs and may be of different sex. (05 Mar 2000) |
| twin placenta | The placenta(s) of a twin pregnancy; if dizygotic, the placenta's may be separate or fused, the latter retaining two amniotic and two chorionic sacs (dichorionic diamniotic placenta); if monozygotic, the placenta may be a (05 Mar 2000) |
| twin pregnancy | A pregnancy that may result from the fertilization of two separate ova or of a single ovum. See: twin. Synonym: bigeminal pregnancy. (05 Mar 2000) |
| twin studies | Methods of detecting genetic aetiology in human traits. The basic premise of twin studies is that monozygotic twins, being formed by the division of a single fertilised ovum, carry identical genes, while dizygotic twins, being formed by the fertilization of two ova by two different spermatozoa, are genetically no more similar than two siblings born after separate pregnancies. (12 Dec 1998) |
| twin study | A method of detecting genetic causes in human traits and genetic factors in behaviour using sets of twins. (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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