Haploidy in DNA amount per chromosome occurs in Anaphase-l/Anaphase-II.

Explanation

To determine when haploidy in DNA amount per chromosome occurs, we need to analyze the events of Anaphase I and Anaphase II during meiosis.

### Step-by-Step Solution:

1. **Understanding Haploidy**:
- Haploidy refers to having a single set of chromosomes (n). In humans, this means 23 chromosomes, as opposed to the diploid state (2n), which has 46 chromosomes.

2. **Meiosis Overview**:
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