In all complex multicellular organisms (eukaryotes), cell duplication occurs by a process called "mitosis" or cell division.
THESEARETHEPHASESOFMITOSIS;
INTERPHASE
Each chromosome undergoes replication, making an identical copy of itself. At this point, the chromosomes are still long and thin, and are not visible inside the nucleus. Cells spend most of their life in this non-dividing phase.
PROPHASE
The chromosomes coil and shorten, and become visible. It becomes apparent that the chromosomes have duplicated. Pairs of identical chromosomes remain attached to each other at the centromere and each chromosome is called a chromatid.
METAPHASE
Chromosomes line up along the center of the cell. A pair of structures called centrioles form at the poles of the cell, and produce spindle fibers which attach to the centromeres of each chromosome pair.
ANAPHASE
The paired chromosomes split at the centromere and the two halves migrate along the spindle fibers to opposite sides of the cell. At the same time, the center of the cell begins to pinch.
TELOPHASE
Cell division occurs, and each is identical to the original. Cells return to Interphase and prepare for another round of division.
Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell.
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Answer:
In all complex multicellular organisms (eukaryotes), cell duplication occurs by a process called "mitosis" or cell division.
THESE ARE THE PHASES OF MITOSIS;
INTERPHASE
PROPHASE
METAPHASE
ANAPHASE
TELOPHASE
Explanation:
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Answer:
Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell.
Explanation: