Match the following events with the appropriate stage / process of cell division:

a. Centrosome movement

b. Homologous chromosomes separate

c. DNA exchange

d. Chromatids separate

A. Prophase I

B. Anaphase I

C. Crossing over

D. Anaphase II

E. Prophase II

F. Telophase I

The correct answer will be-

a. Centrosome movement - Prophase I, Prophase II

b. Homologous chromosomes separate - Anaphase I

c. DNA exchange - Crossing over

d. Chromatids separate - Anaphase II

Explanation:

Centrosomes are the microtubule-organizing center found in the mammalian cells which move from the central portion of the cell to the cell cortex or opposite poles. The movement of centrosomes takes place during prophase I and II which allows the formation of microtubules between them.

In diploid organisms, the homologous chromosomes get separated during the anaphase I which moves apart to the poles of the cells. The separated chromosomes contain a thread of DNA called chromatids which further gets separated during the anaphase II making diploid cells.

The process of DNA exchange takes place during pachytene in meiosis I through a process called crossing over.