Fill in the blanks:
Movement of chiasma at the end of chromosomes in prophase I is called `"________"`

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Prophase I**: In meiosis, prophase I is a crucial stage where homologous chromosomes pair up and exchange genetic material. This pairing is essential for genetic diversity.

2. **Formation of Chiasmata**: During prophase I, non-sister chromatids of homologous chromosomes come together and form structures known as chiasmata. These are the points where the chromosomes overlap and exchange genetic material.

3. **Movement of Chiasmata**: As prophase I progresses, the chiasmata move towards the ends of the chromosomes. This movement is significant as it indicates the completion of crossing over and prepares the chromosomes for separation.

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