There are many similarities between the process of division by meiosis and mitosis. The second anaphase is very similar to that found in mitosis. In the first, the centromeres separate and move towards the poles, dragging the two chromatids. For this reason, there is anaphase I and II. Anaphase in meiosisĬell division by meiosis is characterized by having two processes or phases of nucleus division. To avoid aneuplodia, the kinetochore has mechanisms that help prevent this condition. One of the possible drawbacks in this division phase is the wrong distribution of the two chromatids of a chromosome between the new cells. Failures in anaphaseĪt the end of anaphase, each end of the cell has an equivalent and complete set of chromosomes. In terms of duration, it is the shortest stage of all mitosis, and it only lasts a few minutes. Furthermore, the cell poles are moved away by the elongation of the polar microtubules. One of these is the shortening of the microtubules of the kinetochore, thus the chromatids move further and further away from the equatorial plate towards the poles. This phenomenon occurs thanks to two processes, independent of each other, but coincident. The central event of anaphase is the separation of the chromatids. Chromosomes move from the centromere at a rate of 1 um per minute. The latter is located in the kinetochore region, releases the entangled chromatin fibers and facilitates the separation of sister chromatids. Information is organized into elements called genes.įor this to happen, the process is mediated by an enzyme called topoisomerase.

They have the information necessary for an organism to function and develop. Chromosome overviewīefore describing the process of anaphase, it is necessary to know the basic terminology that biologists use to describe chromosomes.Ĭhromosomes are units of DNA (deoxyribonucleic acid) packed in a highly efficient way. The fundamental difference is that in mitosis there is one anaphase and in meiosis two. It occurs in both mitosis and meiosis.Īlthough the processes of mitosis and meiosis are similar in some of their stages, there are considerable differences in these events. The anaphase It is a phase of the division of the nucleus where the duplicated chromosomes separate, and the chromatids move to opposite poles of the cell. Processes that produce genetic variation in anaphase.Video: mitosis 3d animation |Phases of mitosis|cell division Content

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