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Which human chromosome has the most genes?

Quick Answer

Chromosome 1 is generally considered the most gene-rich human chromosome. It carries more than 2,000 genes.

The Full Story

Chromosome 1 has the highest number of protein-coding genes among human chromosomes. Researchers estimate it contains over 2,000 genes, more than any other chromosome. That large gene content helps explain why it is also the largest chromosome. Many genes on chromosome 1 are linked to growth, immune function, and neurological processes.

Key Facts

1.Chromosome 1 has over 2,000 genes
2.It is the largest human chromosome
3.Genes on it affect many body systems

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"One chromosome holds more genes than any other in the human genome."

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