Hey there,
<span>Centromere is the answer.
Hope this helps :))
<em>~Top</em>
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D should be correct sorry if wrong
Is replicated continuously
<span>The types of individuals in a population that are represented by the two ends of a bell curve are those with an extreme variation of a specific trait. The bell curve is a normal distribution. It is the most common type of distribution. The greatest part of the distribution belongs to the variations of a trait near to the average value. However, two ends of the bell curve belong to individuals with an extreme variation of the trait.</span>