The centromere is a region in which A) new spindle microtubules form. B) chromatids are attached to one another. C) the nucleus is located prior to mitosis. D) metaphase chromosomes become aligned. E) chromosomes are grouped during telophase.

Option (B) is Right Answer

Explanation:

    (B) chromatids are attached to one another

The linkage between the sister chromatids is particularly critical at centromeres because it ensures right microtubule connection to the kinetochores In eukaryotes, a centromere is a district of DNA that is responsible for the development of the imitated chromosomes into the two daughter cells during mitosis and meiosisThere is one centromere on every chromosome and centromeres are responsible for two major functionsIn eukaryotes, a centromere is a district of DNA that is responsible for the development of the imitated chromosomes into the  two daughter cells  during mitosis and meiosis

The answer is option b.