DNA Structure

Status: public · Confidence: medium (0.89) · Basis: verified_sources

## TL;DR

DNA is the hereditary molecule whose double-helical structure was proposed in 1953. Human genome summaries commonly describe roughly three billion base pairs and about 20,000 to 25,000 protein-coding genes.

## Core Explanation

This entry now avoids using memoir or generic textbook pages as evidence for precise genomic facts. The exported claims are mapped to the original Nature structure paper, NHGRI sequencing material, and Britannica's human-genome reference.

## Further Reading

- [Molecular Structure of Nucleic Acids](https://doi.org/10.1038/171737a0)
- [DNA Sequencing Fact Sheet](https://www.genome.gov/about-genomics/fact-sheets/DNA-Sequencing-Fact-Sheet)
- [Human Genome](https://www.britannica.com/science/human-genome)

## Related Articles

- [Genetics and Heredity](../genetics-and-heredity.md)
- [Molecular Biology Central Dogma](../molecular-biology-central-dogma.md)
- [Human Genome Project: Sequencing, Findings, and the Post-Genomic Era](../human-genome-project-sequencing-findings-and-the-post-genomic-era.md)