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The human genome contains over three billion base pairs

Genetic code packaged across 23 chromosome pairs directs human biological development

The human genome consists of approximately 3.2 billion chemical base pairs packaged across 23 pairs of chromosomes inside cell nuclei. Uncoiled, the DNA from a single human cell would stretch roughly two metres in length. Remarkably, less than 2 percent of the human genome directly encodes functional protein sequences.

Human Genome Project Timeline (26964377742)
National Human Genome Research Institute (NHGRI) from Bethesda, MD, USA ยท CC BY 2.0 ยท licence ยท source

Where this comes from

Nobel Prize

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Tags: biology, genome, genetics

The human genome contains over three billion base pairs: the short answers

Where does this come from, and can I check it?
Genetic code packaged across 23 chromosome pairs directs human biological development. The figure is taken from Nobel Prize, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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Yes. It sits on the Science shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
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