The chromosome with large number of genes known

Options

A. `3^(rd)`
B. `2^(nd)`
C. `1^(st)`
D. X-chromosome

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which chromosome has a large number of genes. We need to identify the chromosome that is known for containing a significant number of genes.

2. **Evaluating the Options**: The options provided are:
- Option 1: Third chromosome
- Option 2: Second chromosome
- Option 3: First chromosome
- Option 4: X chromosome

3. **Identifying the Largest Chromosome**: Among the chromosomes, the first chromosome (chromosome 1) is known to be the largest human chromosome. It contains a substantial number of genes compared to other chromosomes.

4. **Gene Count in Chromosome 1**: Chromosome 1 contains approximately 249 million DNA base pairs, which translates to a large number of genes. It constitutes about 8% of the total DNA in human cells.

5. **Conclusion**: Based on the information, the chromosome with the largest number of genes is chromosome 1. Therefore, the correct answer is **Option 3: Chromosome 1**.

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