| Meinicke, Ernst | <person> German physician, 1878-1945. See: Meinicke test. (05 Mar 2000) |
|---|---|
| meio- | For words beginning thus and not found here, see mio-. (05 Mar 2000) |
| meiocene | <geology> See Miocene. Source: Websters Dictionary (01 Mar 1998) |
| meiocyte | Cell that will undergo meiosis, a little used term. (18 Nov 1997) |
| meiofauna | Animals ranging in size from approximately 0.1 mm to 1 mm that live within the sediments, the size class of transition from micro- to macrofauna. (09 Oct 1997) |
| meionite | <chemical> A member of the scapolite, group, occuring in glassy crystals on Monte Somma, near Naples. Origin: Gr. Smaller. So called in a allusion to the low pyramids of the crystals. Source: Websters Dictionary (01 Mar 1998) |
| meiosis | A specialised form of nuclear division in which there two successive nuclear divisions (meiosis I and II) without any chromosome replication between them. Each division can be divided into 4 phases similar to those of mitosis pro, meta, ana and telophase). Meiosis reduces the starting number of 4n chromosomes in the parent cell to n in each of the 4 daughter cells. Each cell receives only one of each homologous chromosome pair, with the maternal and paternal chromosomes being distributed randomly between the cells. This is vital for the segregation of genes. During the prophase of meiosis I (classically divided into stages: Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis), homologous chromosomes pair to form bivalents, thus allowing crossing over, the physical exchange of chromatid segments. This results in the recombination of genes. Meiosis occurs during the formation of gametes in animals, which are thus haploid and fertilization gives a diploid egg. In plants meiosis leads to the formation of the spore by the sporophyte generation. (18 Nov 1997) |
| meiotic | Pertaining to meiosis. (12 Dec 1998) |
| meiotic division | A specialised form of nuclear division in which there two successive nuclear divisions (meiosis I and II) without any chromosome replication between them. Each division can be divided into 4 phases similar to those of mitosis pro, meta, ana and telophase). Meiosis reduces the starting number of 4n chromosomes in the parent cell to n in each of the 4 daughter cells. Each cell receives only one of each homologous chromosome pair, with the maternal and paternal chromosomes being distributed randomly between the cells. This is vital for the segregation of genes. During the prophase of meiosis I (classically divided into stages: Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis), homologous chromosomes pair to form bivalents, thus allowing crossing over, the physical exchange of chromatid segments. This results in the recombination of genes. Meiosis occurs during the formation of gametes in animals, which are thus haploid and fertilization gives a diploid egg. In plants meiosis leads to the formation of the spore by the sporophyte generation. (18 Nov 1997) |
| meiotic drive | Differential fitness in males and females. (05 Mar 2000) |
| meiotic nondisjunction | Failure of two memberrs of a chromosome pair to separate (disjoin) during meiosis so that both go to one daughter cell and none to the other. This mechanism is responsible for the extra chromosome 21 in trisomy 21 (down syndrome) and for extra and missing chromosomes causing other birth defects and many spontaneous abortions (miscarriages). (12 Dec 1998) |
| meiotic phase | The stage of nuclear changes in the sexual cells during which reduction of the chromosomes takes place; it embraces the cell generations of the spermatocytes and oocytes. Synonym: reduction phase. (05 Mar 2000) |
| meiotic spindle | The meiotic equivalent of the mitotic spindle. (18 Nov 1997) |
| Meissel | <technique> For calcium-magnesium-ATPase, a method similar to that of Gomori's non-specific acid phosphatase stain, except that incubation is carried out with ATP as substrate at neutral pH; enzyme activity is generally demonstrated at cell membranes. (05 Mar 2000) |
| Meissner's corpuscle | One of numerous oval bodies found in the papillae of the skin, especially those of the fingers and toes; they consist of a connective tissue capsule in which the axon fibrils terminate around and between a pile of wedge-shaped epithelioid cells. Synonym: corpusculum tactus, Meissner's corpuscle, oval corpuscle, touch corpuscle. (05 Mar 2000) |
| Meissner |
German anatomist (1829-1905) German physicist (1882-1974)
출처: wordnet.princeton.edu/perl/webwn
|
|---|---|
| Meigs' capillaries |
capillaries in the myocardium.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
|
| meiosis |
Meiosis (a Greek word meaning "decrease") is a cellular process that forms the basis for sexual reproduction, together with syngamy. It is a form of nuclear division by which a diploid parent produces four haploid daughter cells. The process includes the two stages of nuclear division (meiosis I and II), each usually accompanied by cell division. Single-stage meiosis has been suggested but not convincingly demonstrated. ...
출처: en.wikipedia.org/wiki/Meiosis
|
| meioses |
Meiosis (a Greek word meaning "decrease") is a cellular process that forms the basis for sexual reproduction, together with syngamy. It is a form of nuclear division by which a diploid parent produces four haploid daughter cells. The process includes the two stages of nuclear division (meiosis I and II), each usually accompanied by cell division. Single-stage meiosis has been suggested but not convincingly demonstrated. ...
출처: en.wikipedia.org/wiki/Meioses
|
| meiotic |
Meiosis (a Greek word meaning "decrease") is a cellular process that forms the basis for sexual reproduction, together with syngamy. It is a form of nuclear division by which a diploid parent produces four haploid daughter cells. The process includes the two stages of nuclear division (meiosis I and II), each usually accompanied by cell division. Single-stage meiosis has been suggested but not convincingly demonstrated. ...
출처: en.wikipedia.org/wiki/Meiotic
|