What role do spindles play in mitosis quizlet?
During mitosis, the spindle fibers are called the mitotic spindle. … Their proteins help to hold the sister chromatids together and also play a role in chromosome editing.is a protein structure on chromatids where the spindle fibers attach during cell division to pull sister chromatids apart.
What is a spindle what is its function quizlet?
Spindle. Definition: Fan-like structure made of microtubules that helps separate the chromosomes during mitosis.
What function do centrioles perform during mitosis?
During mitosis or cell division, the centrosome and centrioles replicate and migrate to opposite ends of the cell. Centrioles help to arrange the microtubules that move chromosomes during cell division to ensure each daughter cell receives the appropriate number of chromosomes.
What is the function of the spindle apparatus?
Any of a network of filaments that collectively form a mitotic spindle (in mitosis) and meiotic spindle (in meiosis). It is chiefly involved in moving and segregating the chromosomes during nuclear division.
What is the spindle quizlet?
spindle apparatus refers to the subcellular structure that segregates chromosomes between daughter cells during cell division. the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers.
What is the role of spindle fibers in mitosis apex?
Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.
What structures make the spindle fibers quizlet?
The nuclear envelope breaks up. Polar fibers, which are microtubules that make up the spindle fibers, reach from each cell pole to the cell’s equator. Kinetochores, which are specialized regions in the centromeres of chromosomes, attach to a type of microtubule called kinetochore fibers.
What is meant by mitotic spindle?
Definition. The mitotic spindle is the microtubule-based bipolar structure that segregates the chromosomes in mitosis. The poles of the mitotic spindle are made up of centrosomes and the chromosomes are lined up at the spindle equator to ensure their correct bi-orientation and segregation.