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Dictionary » N » Nuclear division

Nuclear division

Definition

noun

The process by which a nucleus divides, resulting in the segregation of the genome to opposite poles of a dividing cell.


Supplement

Nuclear divisions occur in both mitosis and meiosis. In mitosis, the result is the division of duplicated copies of genome into two. In meiosis, nuclear division occurs twice, dividing the originally single nucleus into four nuclei that are genetically different from one another.


Synonym: karyokinesis

Compare: cell division

See also: mitosis, meiosis


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Re: Animal cell nucleus shape changes

... your next project. First, a major role of the nucleus during cell division is to temporarily get out of the way; the nuclear membrane disappears for a while. Transcription occurs in the nucleus, but then the ...

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by jonmoulton
Fri Nov 16, 2012 4:03 pm
 
Forum: Cell Biology
Topic: Animal cell nucleus shape changes
Replies: 7
Views: 2180

Animal cell nucleus shape changes

... and/or inactive. Mitosis is a little peculiar case, since during it the nuclear membrane briefly disappears and is re-assmbled for both of the daughter ... to their correct destinations. And in my opinion, for most cells cell division is the only stage when the nucleus can be said to be "amorphous", ...

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by biohazard
Mon Nov 12, 2012 2:04 pm
 
Forum: Cell Biology
Topic: Animal cell nucleus shape changes
Replies: 7
Views: 2180

Is this information correct? Regarding Mitosis and Meiosis

... of meiosis and mitosis DNA replication occurs. In both processes the nuclear membrane breaks down as the DNA organised into what is known as chromosomes. ... cell. In mitosis one duplication of chromosomes occur and one nuclear division. In meiosis one duplication occurs but with two nuclear division. ...

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by BrandonScherrer
Mon Jul 30, 2012 1:54 pm
 
Forum: Cell Biology
Topic: Is this information correct? Regarding Mitosis and Meiosis
Replies: 0
Views: 2733

Compare and contrast the processes of Mitosis and Meiosis

... notes regarding the contrast of both processes. Here: Meiosis is cell division for gametes. Prior the process of meiosis and mitosis DNA replication occurs. In both processes the nuclear membrane breaks down as the DNA organises into what is known as chromosomes. ...

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by BrandonScherrer
Sun Jul 29, 2012 3:16 pm
 
Forum: Cell Biology
Topic: Compare and contrast the processes of Mitosis and Meiosis
Replies: 3
Views: 8266

Chromosomes And Heredity

... hand, it is known and accepted widely that mitosis is a type of cell division that result to two daugther cells each the same as the parents nuclues. ... nucleus: the zygote is formed, but in many cases there is no fusion of nuclear material at this stage. Each nucleus simultaneously undergoes ...

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by chikis
Wed May 16, 2012 10:31 am
 
Forum: Genetics
Topic: Chromosomes And Heredity
Replies: 4
Views: 3273
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