Centrosome: Difference between revisions
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A centrosome is a region in the [[Cytoplasm|cytosplasm of]] a cell in close proximity to a [[Nucleus|nucleus]]. Within the centrosome are contained a pair of [[Centrioles|centrioles]] which play an essential role in the formation of the [[Mitoitic spindle|mitoitic spindle]] during replication of [[DNA|DNA]] (Deoxyribose Nucleic Acid). | A centrosome is a region in the [[Cytoplasm|cytosplasm of]] a cell in close proximity to a [[Nucleus|nucleus]].<ref>Hartl et al. 2006, Essential Genetics p460, 4th edition : Jones and Bartlett Publishers</ref> Within the centrosome are contained a pair of [[Centrioles|centrioles]] which play an essential role in the formation of the [[Mitoitic spindle|mitoitic spindle]] during replication of [[DNA|DNA]] (Deoxyribose Nucleic Acid). | ||
Every centrosome consists of [[Pericentriolar matrix|pericentriolar matrix]], which envelopes the centrioles found in the centrosome. From the matrix, an array of [[Microtubules|microtubules]] form the [[Mitotic spindle|mitotic spindle]] at the correct stage during cell division. | Every centrosome consists of [[Pericentriolar matrix|pericentriolar matrix]], which envelopes the centrioles found in the centrosome. From the matrix, an array of [[Microtubules|microtubules]] form the [[Mitotic spindle|mitotic spindle]] at the correct stage during cell division. | ||
In the majority of eukaryotic cells, duplication of the centrosome starts in the later stages of [[G1|G1]] and is completed during the systhesis stages of [[Mitosis|mitosis]]. | In the majority of eukaryotic cells, duplication of the centrosome starts in the later stages of [[G1|G1]] and is completed during the systhesis stages of [[Mitosis|mitosis]]. | ||
=== References === | |||
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Revision as of 17:56, 21 November 2010
A centrosome is a region in the cytosplasm of a cell in close proximity to a nucleus.[1] Within the centrosome are contained a pair of centrioles which play an essential role in the formation of the mitoitic spindle during replication of DNA (Deoxyribose Nucleic Acid).
Every centrosome consists of pericentriolar matrix, which envelopes the centrioles found in the centrosome. From the matrix, an array of microtubules form the mitotic spindle at the correct stage during cell division.
In the majority of eukaryotic cells, duplication of the centrosome starts in the later stages of G1 and is completed during the systhesis stages of mitosis.
References
- ↑ Hartl et al. 2006, Essential Genetics p460, 4th edition : Jones and Bartlett Publishers