At which particular stage of chromosomes do errors like deletion of genes occur in an individual?

Explanation

**Step-by-Step Solution:**

1. **Understanding Deletion**:
- Deletion is a type of mutation where there is a loss of genetic material from a chromosome. This can involve the removal of one or more genes from the chromosome, which can lead to changes in the organism's characteristics.

2. **Example of Deletion**:
- For instance, consider a chromosome with the gene sequence A, B, C, D, E, and F. If the segment containing genes B, C, and D is deleted, the remaining sequence would be A, E, and F. This alteration can affect the organism's traits.

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