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单词 diakinesis
释义

diakinesis


di·a·ki·ne·sis

D0194600 (dī′ə-kə-nē′sĭs, -kī-)n. pl. di·a·ki·ne·ses (-sēz) The final stage of the prophase in meiosis, characterized by shortening and thickening of the paired chromosomes, formation of the spindle fibers, disappearance of the nucleolus, and degeneration of the nuclear membrane.
di′a·ki·net′ic (-nĕt′ĭk) adj.

diakinesis

(ˌdaɪəkɪˈniːsɪs; -kaɪ-) n (Zoology) the final stage of the prophase of meiosis, during which homologous chromosomes start to separate after crossing over[C20: from dia- + Greek kinēsis movement]

diakinesis

the final stage of prophase prior to the dissolution of the nuclear membrane. — diakinetic, adj.See also: Biology
Thesaurus
Noun1.diakinesis - the final stage of the prophase of meiosisprophase - the first stage of meiosisphase, stage - any distinct time period in a sequence of events; "we are in a transitional stage in which many former ideas must be revised or rejected"

diakinesis


diakinesis

[dī·ə·kə′nē·səs] (cell and molecular biology) The last stage of meiotic prophase, when the chromatids attain maximum contraction and the bivalents move apart and position themselves against the nuclear membrane.

diakinesis


diakinesis

 [di″ah-kĭ-ne´sis] the stage of first meiotic prophase, in which the nucleolus and nuclear envelope disappear and the spindle fibers form.

di·a·ki·ne·sis

(dī'ă-ki-nē'sis), Final stage of prophase in meiosis I, in which the chiasmata present during the diplotene stage disappear, the chromosomes continue to shorten, and the nucleolus and nuclear membrane disappear. [G. dia, through, + kinēsis, movement]

diakinesis

(dī′ə-kə-nē′sĭs, -kī-)n. pl. diakine·ses (-sēz) The final stage of the prophase in meiosis, characterized by shortening and thickening of the paired chromosomes, formation of the spindle fibers, disappearance of the nucleolus, and degeneration of the nuclear membrane.
di′a·ki·net′ic (-nĕt′ĭk) adj.

di·a·ki·ne·sis

(dī'ă-ki-nē'sis) Final stage of prophase in meiosis I, in which the chromosomes continue to shorten and the nucleolus and nuclear membrane disappear. [G. dia, through, + kinēsis, movement]

diakinesis

One of the stages in the process of division of eggs and sperms which ensures that the number of CHROMOSOMES is halved (meiosis). In diakinesis the chromosomes shorten and thicken and the spindle fibres form, ready for the separation of the chromosomes.

diakinesis

the final stage in Prophase I of MEIOSIS where the chromosomes reach maximum contraction with the HOMOLOGOUS CHROMOSOMES tending to separate from each other. The NUCLEOLUS disappears, the nuclear membrane degenerates and a spindle is formed of microtubules produced by the CENTROSOMES.

diakinesis


  • noun

Words related to diakinesis

noun the final stage of the prophase of meiosis

Related Words

  • prophase
  • phase
  • stage
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更新时间:2025/1/31 14:51:44