What happens if all the chromosome kinetochores are not attached to spindle fibers? When this occurs, which checkpoint is not passed?

1 Answer

Answer :

•If the cell does not receive the go-ahead signal, it will exit the cycle, not proceeding onto the S phase

Related questions

Description : A stage of mitosis is shown in the diagram. Which stage is it and what are its characteristics? (a) Metaphase - Spindle fibers attached to kinetochores, centromeres split and chromatids ... chromatids separate and start moving away. (d) Late prophase - Chromosomes move to spindle equator.

Last Answer : (b) Metaphase - Chromosomes moved to spindle equator, chromosomes made up of two sister chromatids.

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Last Answer : •The mitotic spindle is an apparatus of microtubules that controls chromosome movement during mitosis •During prophase, assembly of spindle microtubules begins in the centrosome, the microtubule organizing center

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Last Answer : •During prophase, assembly of spindle microtubules begins in the centrosome, the microtubule organizing center

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Last Answer : •The mitotic spindle is an apparatus of microtubules that controls chromosome movement during mitosis

Description : Assertion :- Kinetochore is essential for cell division. Reason :- Kinetochores serve as the sites of attachment of spindle fibres to the chromosome.

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Last Answer : During cell division, spindle fibers attach to which part of chromosome :- A. Primary constriction B. Sec. Constriction C. Chromomere D. Chromatid

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Last Answer : •Some external signals are growth factors, proteins released by certain cells that stimulate other cells to divide

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Last Answer : Need answer

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Last Answer : What is the answer ?

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Last Answer : answer:

Description : When do microtubules attach to kinetochores? -Biology

Last Answer : answer:

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