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  2. Centriole - Wikipedia

    en.wikipedia.org/wiki/Centriole

    3D rendering of centrioles showing the triplets. In cell biology a centriole is a cylindrical organelle composed mainly of a protein called tubulin. [1] Centrioles are found in most eukaryotic cells, but are not present in conifers (), flowering plants (angiosperms) and most fungi, and are only present in the male gametes of charophytes, bryophytes, seedless vascular plants, cycads, and Ginkgo.

  3. Stunted growth - Wikipedia

    en.wikipedia.org/wiki/Stunted_growth

    Stunted growth, also known as stunting or linear growth failure, is defined as impaired growth and development manifested by low height-for-age. [1] It is a manifestation of malnutrition (undernutrition) and can be caused by endogenous factors (such as chronic food insecurity) or exogenous factors (such as parasitic infection).

  4. Centrosome cycle - Wikipedia

    en.wikipedia.org/wiki/Centrosome_cycle

    However, the two centrioles are of different ages. This is because one centriole originates from the mother cell while the other is replicated from the mother centriole during the cell cycle. It is possible to distinguish between the two preexisting centrioles because the mother and daughter centriole differ in both shape and function. [5]

  5. Centrosome - Wikipedia

    en.wikipedia.org/wiki/Centrosome

    The mother centriole just aids in the accumulation of materials required for the assembly of the daughter centriole. [17] Centrosome (shown by arrow) next to nucleus. Centrioles, however, are not required for the progression of mitosis. When the centrioles are irradiated by a laser, mitosis proceeds normally with a morphologically normal spindle.

  6. Polyspermy - Wikipedia

    en.wikipedia.org/wiki/Polyspermy

    According to Developmental Biology Interactive, if an egg becomes fertilized by multiple sperm, the embryo will then gain various paternal centrioles. When this happens, there is a struggle for extra chromosomes. This competition causes disarrayment in cleavage furrow formation and the normal consequence is death of the zygote. [8]

  7. Procentriole - Wikipedia

    en.wikipedia.org/wiki/Procentriole

    A procentriole (/ p r oʊ ˈ s ɛ n t r i. oʊ l / proh-SEN-tree-ohl [1]) is a centriole or basal body in a stage of early development. That is, it is what is to become a set of triplets of microtubules destined to form spindles of fibres that will separate chromosomes during mitosis and in order to act as anchoring sites for some proteins.

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  9. Microtubule organizing center - Wikipedia

    en.wikipedia.org/wiki/Microtubule_organizing_center

    Centrioles do not exist in the MTOCs of yeast and fungi. [1] In these organisms, the nuclear envelope does not break down during mitosis and the spindle pole body serves to connect cytoplasmic with nuclear microtubules. The disc-shaped spindle pole body is organized into three layers: the central plaque, inner plaque, and outer plaque.