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equatorial plate
equatorial platen. The plane located midway between the poles of a dividing cell during the metaphase stage of mitosis or meiosis and formed from the migration of the chromosomes to the spindle's center.Equatorial Plate
Equatorial Plate in a dividing cell, the arrangement of the chromosomes at the same distance from both poles. The equatorial plate is formed during the metaphase stage of cell division. At this stage it is difficult to distinguish separate chromosomes, but in aggregate they have the appearance of a plate. When, however, the cell is viewed from the poles, the chromosomes in the equatorial plane of the spindle appear in the form of a star. After the formation of the equatorial plate, the daughter chromosomes separate and migrate to opposite poles. equatorial plate
plate [plāt] 1. a flat stratum or layer.2. dental plate; sometimes, by extension, incorrectly used to designate a complete denture.3. a flat vessel, usually a petri dish, containing sterile solid medium for the culture of microorganisms.4. to prepare a culture medium in a petri dish, or to inoculate such a medium with a bacterial culture.axial plate primitive streak.bite plate biteplate.cortical plate a layer of compact bone overlying the spongiosa of the alveolar process on the vestibular and oral aspects of the mandible and maxilla.deck plate roof plate.dental plate a plate of acrylic resin, metal, or other material that is fitted to the shape of the mouth, and serves for the support of artificial teeth.dorsal plate roof plate.end plate see end plate.epiphyseal plate the thin plate of cartilage between the epiphysis and the shaft of a long bone; it is the site of growth in length and is obliterated by epiphyseal closure.equatorial plate the collection of chromosomes at the equator of the spindle in mitosis.floor plate the unpaired ventral longitudinal zone of the tube" >neural tube; called also ventral plate.foot plate footplate.force plate force platform.medullary plate neural plate.muscle plate myotome (def. 2).neural plate a thickened band of ectoderm in the midbody region of the developing embryo, which develops into the tube" >neural tube; called also medullary plate.roof plate the unpaired dorsal longitudinal zone of the tube" >neural tube; called also dorsal plate and deck plate.tarsal plate tarsus (def. 2).ventral plate floor plate.e·qua·to·ri·al platethe assembly of chromosomes in mitosis.equatorial platen. The plane located midway between the poles of a dividing cell during the metaphase stage of mitosis or meiosis and formed from the migration of the chromosomes to the spindle's center.e·qua·to·ri·al plate (ek'wă-tōr'ē-ăl plāt) The assembly of chromosomes in mitosis. equatorial plate an arrangement of chromosomes lying in one plane at the equator of the spindle in METAPHASE of MITOSIS or MEIOSIS.ThesaurusSeeplate |