| 영문 | alpha particles | 한글 | 알파입자 |
|---|---|---|---|
| 설명 | 원자에 정상보다 과다, 과소한 중성자나 양자를 가지고 있는 경우에 원자가 안정되기 위해서 붕괴가 생긴다. 이런 붕괴에는 다음과 같은 3가지 방법이 있다. 알파－붕괴는 알파입자를 방출하여 안정되는 법, 즉 원자번호는 2씩 감소하고 질량수는 4씩 감소한다. 알파입자란 알파붕괴에 의해서 생기는 헬륨의 핵과 같은 입자를 말한다. |
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| 영문 | chromatin | 한글 | 염색질 |
|---|---|---|---|
| 설명 | 세포핵 속에 존재하며, 헤마톡실린 등의 염기성 색소로 염색이 되는 물질. 염색사나 염색체의 주성분이다. 세포핵 안에는 호염기성 물질로 DNA와 히스톤(핵단백질)의 복합체를 주성분으로 한다. 원래는 염기성 색소에 쉽게 염색된다는 의미에서 명명되었다. 세포주기에 따라 그 구조가 변한다. 전자현미경으로 전자밀도가 높은 부분은 기능이 낮고 전자밀도가 낮은 부분은 기능적으로 활성도가 높다. 퍼진염색질과 뭉친염색질로 나누기도 한다. 퍼진염색질은 이상 응축을 일으키지 않지만 유전자를 함유하고 있다. 이것에 비해 뭉친염색질은 이상응축을 나타내며, 퇴색반응으로 각 염색체에 특유한 줄무늬를 나타낸다. |
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| CB | Bachelor of Surgery [Lat. Chirurgiae Baccalaureus]; calcium blocker; carbenicillin; carotid body; ch... |
|---|---|
| CGAT | chromatin granule amine transformer |
| SC | conditioned stimulus; sacrococcygeal; Sanitary Corps; scalenus [muscle]; scapula; Schwann cell; scia... |
| SCT | secretin; sex chromatin test; sexual compatibility test; sickle-cell trait; sperm cytotoxicity; spin... |
| Ea | kinetic energy of alpha particles |
| CAF-1 | Chromatin assembly factor 1 |
|---|---|
| ChIP | Chromatin immunoprecipitation |
| SCSA | Sperm Chromatin Structure Assay |
| DIPs | Defective interfering particles |
| DEP | Diesel exhaust particles |
micronucleus
| chromatin particles | Fine bluish dots thought to represent remnants of the nucleus, occasionally seen in stained erythrocytes. (05 Mar 2000) |
|---|
| alpha particles | Positively charged particles composed of two protons and two neutrons, i.e., helium nuclei, emitted during disintegration of very heavy isotopes; a beam of alpha particles or an alpha ray has very strong ionizing power, but weak penetrability. (12 Dec 1998) |
|---|---|
| submitochondrial particles | The various filaments, granules, tubules or other inclusions within mitochondria. (12 Dec 1998) |
| electron transport particles | <cell biology> Fragments of mitochondria still capable of transporting electrons. One of the units occurring on the matrical surface of mitochondrial cristae; the head of the particle which measures about 9 nm, attaches to the membrane of the crista by a stalk 5 nm in length; the particle may be concerned with the electron transport system. Synonym: submitochondrial particles. (05 Mar 2000) |
| elementary particles | <radiobiology> at a nuclear-energy level: electron & positron - seem to be stable, proton - thought to be stable, life greater than 10^30 sec, neutron - decays in ?6 min unless its in a nucleus, which often extends its life. Other particles important for nuclear energy: Muon, neutrino (m, e, tau), photon, Muonic atoms, Pi-meson antiparticles (09 Oct 1997) |
| kappa particles | Inheritable cytoplasmic symbionts, once thought to be particle's mainly or exclusively of DNA, occurring in some strains of Paramecium; capable of producing a product lethal to other strains. (05 Mar 2000) |
| Barr chromatin body | Condensed chromatin of the inactivated X chromosome in female mammals (Barr body). (18 Nov 1997) |
| chromatin | Stainable material of interphase nucleus consisting of nucleic acid and associated histone protein packed into nucleosomes. Euchromatin is loosely packed and accessible to RNA polymerases, whereas heterochromatin is highly condensed and probably transcriptionally inactive. (18 Nov 1997) |
| chromatin 3'-phosphatase-5'-hydroxy kinase | <enzyme> Hydrolyzes the 3'-phosphate end of a polynucleotide duplex followed by ATP-mediated phosphorylation of the 5'-oh end Registry number: EC 3.1.3.- Synonym: chromatin-phosphatase-hydroxykinase (26 Jun 1999) |
| chromatin body | Barr body, condensed X chromosome in female mammalian cell. (18 Nov 1997) |
| chromatin network | The appearance of basophilic material in the nuclei of many cells after fixation. See: chromatin. (05 Mar 2000) |
| chromatin nucleolus | <cell biology> The central portion of a cells nucleus that typically contains a glob of heterochromatin. Origin: Gr. Soma = body (09 Oct 1997) |
| heteropyknotic chromatin | <cell biology, genetics> The chromosomal regions that are condensed during interphase and at the time of nuclear division. They show what is considered an abnormal pattern of staining as opposed to euchromatin. Can be subdivided into constitutive regions (present in all cells) and facultative heterochromatin (present in some cells only). The inactive X chromosome of female mammals is an example of facultative heterochromatin. (18 Nov 1997) |
| sex chromatin | Condensed chromatin of the inactivated X chromosome in female mammals (Barr body). (18 Nov 1997) |
| oxyphil chromatin | Chromatin that stains with acid dyes, as in interphase nuclei. Synonym: oxyphil chromatin. (05 Mar 2000) |
| y chromatin | Brilliantly fluorescent body seen in cells stained with the dye quinacrine which lights up the y chromosomes most brightly. (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|