Longest chromosomes occur e in

Options

A. Lilium
B. Zea mays
C. Allium
D. Trillium

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the organism that has the longest chromosome. It is important to identify the specific organism rather than just discussing chromosomes in general.

2. **Researching Chromosome Sizes**: Chromosomes vary in size across different organisms. The average size of a chromosome is about 6 micrometers. However, some organisms have significantly longer chromosomes.

3. **Identifying the Longest Chromosome**: After researching, it is found that the longest chromosome is present in the plant genus Trillium. This genus belongs to the Liliaceae family.

4. **Measuring the Longest Chromosome**: In the metaphase stage of cell division, the longest chromosome in Trillium has been measured to be approximately 30 micrometers in length. This measurement is taken when the chromosomes are aligned on the metaphase plate during cell division.

5. **Conclusion**: Based on the information gathered, the organism with the longest chromosome is Trillium.

**Final Answer**: The longest chromosomes occur in Trillium.

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