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During prophase what structures are held together by the centromeres?
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∙ 7y ago
Mossie Lueilwitz
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During what phase of mitosis do centromeres divide and chrosmomes move toward their respective poles?
Prophase. ( perhaps prometaphase, as is in recent college biology texts )
What are the two most important structures involved in moving chromosomes during mitosis?
Centromeres and spindle fibers..Prophase: During cell division small structures called centromeres move to opposite ends of a cell.Prometaphase: These centromere structures produce spindle fibers that attach to the chromosomes' kinetochores (where the sister chromatids are joined together with bundles of proteins). Other spindle fibers attach to each other at the center.Metaphase: Tension is applied to the fibers, this causes the chromosomes to align along the center of the cell.Anaphase: The fibers pull the chromosomes apart and towards the centromeres at each end of the cell.Telophase: chromosomes arrive at ends and spindle fivers disappear.
When do the centromeres split and form the chromatids?
Centromeres are specialized structures on the chromosome of a cell, which joins two sister chromatids. Centromeres splite during Anaphase II.
What holds together the sister chromatids during the cell cycle?
centromeres
Which structure holds chromatid pairs together during early mitosis?
centromeres
What structures are becoming visable as distinct bodies within the nucleus during prophase?
Chromosomes
What two structures disappear during prophase?
During prophase, the nuclear membrane and the nucleolus dissolve and disappear.
In which phase do centromeres uncouple sister chromatids are separated and two new chromosomes move to opposite polls of the cell?
prophase !
What chromatids are attached at the centromere?
Strictly speaking, chromatids aren't attached; they grow that way. They are, however, formed during Prophase of mitosis and Prophase I of meiosis. A: CENTROMERES
Chromatin threads change to dense rods during the process of?
Chromatin changes to thick rods called chromosomes during anaphase. During anaphase the centromeres divide and are pulled apart by the spindle fibers. They then move to opposite ends of the poles.
What structures are becoming visible as distict bodies within the nucleus during prophase?
nova net kids.. chromosomes
What stage does chromatin condense to chromosomes?
During mitosis, chromosomes are in their most condensed form during metaphase
