endomitosis

en·do·mi·to·sis

E0135600 (ĕn′dō-mī-tō′sĭs)n. A process by which chromosomes replicate without the division of the cell nucleus.

en′do·mi·tot′ic (-tŏt′ĭk) adj.

endomitosis

(ˌɛndəʊmaɪˈtəʊsɪs) n (Biology) biology the division of chromosomes but not of the cell nucleus, resulting in a polyploid cell

Endomitosis

enUK

endomitosis

[¦en·dō‚mī′tō·səs] (cell and molecular biology) Division of the chromosomes without dissolution of the nuclear membrane; results in polyploidy or polyteny.

Endomitosis

in many plants and some animals, doubling of the number of chromosomes in the nuclei of cells.

In contrast to mitosis, the nuclear membrane and the nucleolus are not destroyed, the cleavage spindle does not form, and reorganization of the cytoplasm does not occur. However, the chromosomes do go through the cycle of spiralization and despiralization. Repeated endomitoses lead to the development of giant polyploid nuclei, resulting in an increase of deoxyribonucleic acid (DNA) in the cell. The term “endomitosis” also denotes the process of repeated doubling of the nucleoprotein threads (chromonemata), which constitute the core of the chromosomes, without an increase in the number of the chromosomes. As a result of the substantial increase in the amount of DNA in the nuclei, giant (polytenic) chromosomes form.

endomitosis

[en″do-mi-to´sis] mitosis taking place without dissolution of the nuclear membrane, and not followed by cytoplasmic division, resulting in doubling of the number of chromosomes within the nucleus. adj., adj endomitot´ic.

en·do·pol·y·ploi·dy

(en'dō-pol'ē-ploy'dē), The process or state of duplication of the DNA content of the nuclei without accompanying spindle formation or cytokinesis, resulting in a polyploid nucleus. Synonym(s): endomitosis [endo- + polyploidy]

endomitosis

(ĕn′dō-mī-tō′sĭs)n. A process by which chromosomes replicate without the division of the cell nucleus.

en′do·mi·tot′ic (-tŏt′ĭk) adj.

en·do·pol·y·ploi·dy

(en'dō-pol'ē-ploy-dē) The process or state of duplication of the chromosomes without accompanying spindle formation or cytokinesis, resulting in a polyploid nucleus.
Synonym(s): endomitosis.

endomitosis

the doubling of the chromosome number without subsequent cell division, so producing a POLYPLOID.

单词	endomitosis
释义	endomitosis enUK en·do·mi·to·sis E0135600 (ĕn′dō-mī-tō′sĭs)n. A process by which chromosomes replicate without the division of the cell nucleus. en′do·mi·tot′ic (-tŏt′ĭk) adj. endomitosis (ˌɛndəʊmaɪˈtəʊsɪs) n (Biology) biology the division of chromosomes but not of the cell nucleus, resulting in a polyploid cell Endomitosis enUK endomitosis [¦en·dō‚mī′tō·səs] (cell and molecular biology) Division of the chromosomes without dissolution of the nuclear membrane; results in polyploidy or polyteny. Endomitosis in many plants and some animals, doubling of the number of chromosomes in the nuclei of cells. In contrast to mitosis, the nuclear membrane and the nucleolus are not destroyed, the cleavage spindle does not form, and reorganization of the cytoplasm does not occur. However, the chromosomes do go through the cycle of spiralization and despiralization. Repeated endomitoses lead to the development of giant polyploid nuclei, resulting in an increase of deoxyribonucleic acid (DNA) in the cell. The term “endomitosis” also denotes the process of repeated doubling of the nucleoprotein threads (chromonemata), which constitute the core of the chromosomes, without an increase in the number of the chromosomes. As a result of the substantial increase in the amount of DNA in the nuclei, giant (polytenic) chromosomes form. endomitosis enUK endomitosis [en″do-mi-to´sis] mitosis taking place without dissolution of the nuclear membrane, and not followed by cytoplasmic division, resulting in doubling of the number of chromosomes within the nucleus. adj., adj endomitot´ic. en·do·pol·y·ploi·dy (en'dō-pol'ē-ploy'dē), The process or state of duplication of the DNA content of the nuclei without accompanying spindle formation or cytokinesis, resulting in a polyploid nucleus. Synonym(s): endomitosis [endo- + polyploidy] endomitosis (ĕn′dō-mī-tō′sĭs)n. A process by which chromosomes replicate without the division of the cell nucleus. en′do·mi·tot′ic (-tŏt′ĭk) adj. en·do·pol·y·ploi·dy (en'dō-pol'ē-ploy-dē) The process or state of duplication of the chromosomes without accompanying spindle formation or cytokinesis, resulting in a polyploid nucleus. Synonym(s): endomitosis. endomitosis the doubling of the chromosome number without subsequent cell division, so producing a POLYPLOID. ThesaurusSeemitosis
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