Question

At which stage of meiosis the chromosome number reduces to half?

• A. Anaphase I
• B. Anaphase II
• C. Telophase I
• D. Telophase II

Answer 1

The correct option is A Anaphase I

Chromosome number reduces to half during anaphase I of meiosis. The sister chromatids remain together while the homologous obtained from the other parent seperate. Kinetochore microtubules shorten, pulling homologous chromosomes to opposite poles. Non-kinetochore microtubules lengthen, pushing the centrosomes farther apart. The cohesin from the chromosome arms is degraded while the cohesin surrounding the centromere remains protected.

So, the correct answer is option A.