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Metaphase chromosomes make the classical picture of chromosomes . For classical cytogenetic analyses, cells are grown in short term culture and arrested in metaphase using mitotic inhibitor . Further they are used for slide preparation and banding ( staining ) of chromosomes to be visualised under microscope to study structure and number of ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 February 2025. Cell division producing haploid gametes For the figure of speech, see Meiosis (figure of speech). For the process whereby cell nuclei divide to produce two copies of themselves, see Mitosis. For excessive constriction of the pupils, see Miosis. For the parasitic infestation, see Myiasis ...
Also, in metaphase I, the crossed-over arms appear unequal. The aster shouldn't be shown as sun rays; they should have the same appearance as the spindle microtubules (but shorter). The "Homologous chromosomes" label in prophase I should probably point to each of the pairs, the way "Sister chromatids" does in anaphase I.
Karyotyping generally combines light microscopy and photography in the metaphase of the cell cycle, and results in a photomicrographic (or simply micrographic) karyogram. In contrast, a schematic karyogram is a designed graphic representation of a karyotype.
Meiosis undergoes two divisions resulting in four haploid daughter cells. Homologous chromosomes are separated in the first division of meiosis, such that each daughter cell has one copy of each chromosome. These chromosomes have already been replicated and have two sister chromatids which are then separated during the second division of ...
The spindle checkpoint, also known as the metaphase-to-anaphase transition, the spindle assembly checkpoint (SAC), the metaphase checkpoint, or the mitotic checkpoint, is a cell cycle checkpoint during metaphase of mitosis or meiosis that prevents the separation of the duplicated chromosomes until each chromosome is properly attached to the ...
Metaphase: In this stage the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere. Anaphase : In this stage the sister chromatids separate into individual chromosomes and are pulled apart.
This interval includes the G 2 phase and metaphase (annotated as "Meta."). Further information: Karyotype G 2 phase , Gap 2 phase , or Growth 2 phase , is the third subphase of interphase in the cell cycle directly preceding mitosis .