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Biology · CELL CYCLE AND CELL DIVISION

हिन्दी

Which critical cytological difference distinguishes Anaphase I of meiosis from Anaphase II? Which of the above statements is/are correct?

  1. A
    Homologous chromosomes separate in Anaphase II, whereas sister chromatids separate in Anaphase I
  2. B
    Microtubules attach to kinetochores in Anaphase I but not in Anaphase II
  3. C
    Centromeres split in Anaphase II, whereas in Anaphase I homologous chromosomes separate with sister chromatids remaining associated
  4. D
    DNA replication occurs between Anaphase I and Anaphase II to double chromosome number
View Answer & Solution

Correct answer · Option C

Centromeres split in Anaphase II, whereas in Anaphase I homologous chromosomes separate with sister chromatids remaining associated

Explanation

In Anaphase I, homologous chromosomes separate while sister chromatids remain associated at centromeres; in Anaphase II, centromeres split simultaneously allowing sister chromatids to separate.
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