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centromere
the nucleus
An organelle in many animal cells that appears to be involved in the formation of the spindle during mitosis. During cell division, the two centrioles move to opposite sides of the nucleus to form the ends of the spindle.
It changes into a cocoon and dissolves.
Used during Meiosis and Mitosis, only in animals. Helps with cell division.
The centrosomes, containing the centrioles, are the source and the organizer of the mitotic spindle in animal cells, but plant cells seem to do just fine during mitosis without such organelles.
A centrosome in biology is the Organelle located near the nucleus in the cytoplasm that divides and migrates to opposite poles of the cell during mitosis.
There are different processes involved during changes in states of matter. The most common ones include melting, evaporation, condensation and freezing.
In mitosis, the division of the nucleus is carried out by the spindle fibers. These fibers are formed by the microtubules and are responsible for separating the duplicated chromosomes into two sets in the process called cytokinesis.
Organelle replication is part of the process during which cells prepare for mitosis, rather than part of mitosis itself. This happens during interphase, specifically in G1 and G2 (but not S, which is exclusively dedicated to DNA replication). However, organelle replication is not necessarily part of the cell cycle, nor does it follow a cyclic pattern either. Sometimes organelles won't replicate at all, and they will simply be redistributed into each of the new daughter cells. Organelle redistribution is, therefore, a mixture of simple redistribution of previously existing organelles, and a distribution of new organelles replicated during the cell's interphase.
METAMORPHOSIS : something like caterpillar turning in to butterfly.
what guides the chromosomes movement during mitosis