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Concept

pseudogenes

The image depicts a DNA structure with a blue helix intertwined with orange, wavy strands, symbolizing pseudogenes, which are broken or silenced genetic sequences resembling functional genes.

Broken or silenced genetic sequences that closely resemble functional genes but no longer produce a working protein. The human genome carries thousands of them, including disabled versions of genes that other mammals still use — to manufacture vitamin C, to detect a wider range of smells, to build a longer tail. Pseudogenes are molecular fossils, preserving the wreckage of capabilities our ancestors once had.

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