spindle fiber


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spindle fiber

n.
One of a network of achromatic filaments that extend inward from the poles of a dividing cell, forming a spindle-shaped figure.
References in periodicals archive ?
Also note that because meiosis depends on two rounds of segregation, students' lack of understanding of spindle fiber function carries over into continued misunderstandings about the process and products of meiosis.
At the time of embryos freezing, damage to spindle fiber and cortical granules are observed in Metaphase II stage during the exposure of cryoprotectant and freezing (Stachecki et al.
To prevent tearing, there are Golgi tendons and spindle fiber organs.
In transparent specimens, the movements of chromosomes and centrosomes can be recorded with transmitted light if phase contrast or DIC optics are employed (6), while polarization methods can reveal spindle fiber microtubule dynamics and provide a quantitative measure of microtubule assembly and orientation (6).
Building on this potent combination, Inoue contributed landmark observations and concepts in cell biology, including the notion that there are dynamic, fine structures inside living cells, in which molecular assemblies such as mitotic spindle fibers exist in delicate equilibrium with their molecular building blocks suspended in the cytoplasm.
com)-- During mitosis, spindle fibers attach to the centromere via the kinetochore.
18, 21) Muscle spindle fibers found in the RCPma and OCI muscles are a source of primary afferents' representing major contributors to cervical spine neuromuscular control.
A curious phenomenon of plant spindles, true of bryophytes and seed plants, is the presence of [gamma]-Tubulin in the spindle fibers themselves (Liu et al.
2003) suggest that non-oriented chromosomes result from a linking failure of spindle fibers to the kinetochore, making them disperse in the cytoplasm.
rubromarginata (anaphase I), the chromosomes have a parallel arrangement to the spindle fibers, and kinetic activity is restricted to the telomere regions.
As a result, their spindle fibers do not necessarily assume the normal shape of a spindle with two poles; instead, they can have a dysfunctional, multipolar shape.