Question

Identify the two stages of meiosis that have been represented in the images below:

• A. (i) - Anaphase I; (ii) - Anaphase II
• B. (i) - Anaphase II; (ii) - Anaphase I
• C. (i) - Metaphase I; (ii) - Metaphase II
• D. (i) - Metaphase II; (ii) - Metaphase I

Answer 1

The correct option is A (i) - Anaphase I; (ii) - Anaphase II

The images describe the following events of meiosis:

(i) Anaphase I of meiosis I: Meiosis I is a reduction division. During anaphase I, the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.


(ii) Anaphase II of meiosis II: Meiosis II is an equational division. During anaphase II, the centromeres of the chromosomes split and the sister chromatids move to the opposite poles of the cell.


During metaphase I of meiosis I, the homologous chromosomes align at the equatorial plate. The spindle microtubules attach to the kinetochore of the homologous chromosomes.

During metaphase II of meiosis II, the chromosomes align at the equatorial plate and the spindle microtubules attach to the kinetochores of the sister chromatids.