What is incorrect for human chormosome 1?

Options

A. It is one of the largest chromosome
B. Its sequence was completed in May 2007
C. It has maximum number of genes
D. It was the last chromosome to be sequenced

Answer

To determine which statement about human chromosome 1 is incorrect, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Options**: The statements provided are:
- Option 1: It is one of the largest chromosomes.
- Option 2: Its sequence was completed in May 2007.
- Option 3: It has the maximum number of genes.
- Option 4: It was the last chromosome to be sequenced.

2. **Evaluate Option 1**:
- Human chromosome 1 is indeed one of the largest chromosomes in the human genome.
- **Conclusion**: This statement is **correct**.

3. **Evaluate Option 2**:
- The sequencing of human chromosome 1 was completed in May 2003, not May 2007.
- **Conclusion**: This statement is **incorrect**.

4. **Evaluate Option 3**:
- Human chromosome 1 has the highest number of genes compared to other chromosomes.
- **Conclusion**: This statement is **correct**.

5. **Evaluate Option 4**:
- Human chromosome 1 was not the last chromosome to be sequenced; it was sequenced earlier than several other chromosomes.
- **Conclusion**: This statement is **correct**.

6. **Final Conclusion**:
- The incorrect statement regarding human chromosome 1 is **Option 2**: "Its sequence was completed in May 2007."