Spindle fibers shorten during anaphase I and anaphase II in meiosis in order for both the separation of the homologous chromosomes and the sister chromatids to opposite poles before telophase I and II. After cytokinesis, the end result would be four daughter cells, otherwise known as the tetrad, being produced with half the number of chromosomes as compared to the parent cell. In mitosis, spindle fibers attached to the kinetochores of the chromosome shorten only during anaphase to separate the sister chromatids away from the centromere to opposite poles in preparation for cytokinesis where there would be a cleavage furrow deepening at the equator of the cell. The end result of mitosis are two daughter cells with identical number of chromosomes as the parent cell.
Imma Be right, Its Telophase. ;)
During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.
The spindle fibers disassemble during anaphase. As the spindle fibers shorten during anaphase, they separate the chromatids from one another and then move them to opposite poles. The answer above stating that the Spindle Fibers disassemble during anaphase is incorrect. If they were to disassemble at anaphase it would completely halt the cell division process. The spindle fibers disassemble during telophase.
The strands are called chromatids. Druing prophase, the chromosomes coil and shorten and the nuclear memebrane dissolves. Each chromosome is made up of a pair of strands called chromatids, which are connected by a spindle of fibers called a centromere.
Spindle fibers disassemble.
metaphase , well double stranded chromosomes are .
During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.During anaphase I of meiosis the spindle fibers pull apart in homologous chromosomes. The spindle fibers are composed of micro-tubules. The spindle fibers continue to shorten during anaphase in order to bring the chromosomes at two poles.
Anaphase
The spindle fibers disassemble during anaphase. As the spindle fibers shorten during anaphase, they separate the chromatids from one another and then move them to opposite poles. The answer above stating that the Spindle Fibers disassemble during anaphase is incorrect. If they were to disassemble at anaphase it would completely halt the cell division process. The spindle fibers disassemble during telophase.
The answer is Spindle Fibers.
The strands are called chromatids. Druing prophase, the chromosomes coil and shorten and the nuclear memebrane dissolves. Each chromosome is made up of a pair of strands called chromatids, which are connected by a spindle of fibers called a centromere.
Bleaching the middle of fluorescing microtubules reveals the answer to this question. The bleached section does not move during the shortening of the spindle fibers which indicates that the shortening is occurring near the kinetochore.
Spindle fibers disassemble.
metaphase , well double stranded chromosomes are .
spindle fibers are composed of what? Answer: Microtubules
Animal cells have spindle fibers in them.
Fibers in the spindle that attach to the centromere of the chromosomes are called what?
spindle fibers