In humans, the largest gene is present on

Options

A. Chromosome-1
B. Y-chromosome
C. X-chromosome
D. Chromosome-7

Answer

To determine where the largest gene in humans is located, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chromosomes**: We need to consider the chromosomes mentioned in the question: chromosome 1, chromosome Y, X chromosome, and chromosome 7.

2. **Understand Gene Location**: Genes are segments of DNA located on chromosomes. Therefore, the largest gene will be found on the chromosome that has the most extensive genetic material.

3. **Determine the Largest Chromosome**: Among the chromosomes listed, chromosome 1 is known to be the largest chromosome in humans. It contains a significant number of genes.

4. **Identify the Largest Gene**: Since chromosome 1 is the largest chromosome, the largest gene in humans must also be located on chromosome 1.

5. **Quantify the Size**: The largest gene on chromosome 1 is known to be around 249 million base pairs long, which is substantial compared to genes on other chromosomes.

6. **Conclusion**: Therefore, the answer to the question is that the largest gene in humans is present on chromosome 1.

### Final Answer:
The largest gene in humans is present on **chromosome 1**.

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