What does spindle apparatus mean?
Definitions for spindle apparatus
spin·dle appa·ra·tus
This dictionary definitions page includes all the possible meanings, example usage and translations of the word spindle apparatus.
Wikidata
Spindle apparatus
In cell biology, spindle apparatus refers to the subcellular structure that segregates chromosomes between daughter cells during cell division. It is also referred to as the mitotic spindle during mitosis or the meiotic spindle during meiosis. While the spindle apparatus is composed of hundreds upon hundreds of proteins, the fundamental machinery are the spindle microtubules. Attachment of microtubules to chromosomes is mediated by kinetochores, which actively monitor spindle formation and prevent premature anaphase onset. Microtubule polymerization and depolymerization dynamics drive chromosome congression. Depolymerization of microtubules generates tension at kinetochores; bipolar attachment of sister kinetochores to microtubules emanating from opposite cell poles couples opposing tension forces, aligning chromosomes at the cell equator and poising them for segregation to daughter cells. Once every chromosome is bi-oriented, anaphase commences and cohesin, which couples sister chromatids, is severed, permitting the transit of the sister chromatids to opposite poles.
Numerology
Chaldean Numerology
The numerical value of spindle apparatus in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of spindle apparatus in Pythagorean Numerology is: 3
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"spindle apparatus." Definitions.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.definitions.net/definition/spindle+apparatus>.
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