Answer:
B) Growth
Explanation:
Choice A): This is wrong because the centromere is simply a part of a chromosome, i.e. the part of a chromosome consisting of two sister chromatids where the sister chromatids are the most tightly bound together.
Choice B): This is right because this is indeed one of the major reasons mitosis, or cell division takes place. For example, as a human grows, his or her cells must constantly divide for the human to grow; the cells themselves <em>do not</em> grow larger.
Choice C): This is wrong because this is simply a description for the number of chromosomes within a particular cell. This type of cell is a somatic, or body, cell, just any regular cell you would find in an organism.
Choice D): Well, you said besides reproduction, so I didn't choose this. Just in case, cells divide for reproduction purposes because of meiosis, where the gametes (sex cells) are produced.
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