80. Rare Genes Cause Common Diseases

Population growth has flooded our DNA with mutations, yielding both diversity and complex illnesses.

RELATED TAGS: GENES & HEALTH, GENETICS
dna-processing
Ten thousand years ago, there were just 5 million people on Earth, fewer than live in Singapore today. The population has since soared to 7 billion. This rapid growth has left a mark on the human genome, researchers are finding, drastically increasing the number of very rare mutations in our DNA. That realization casts doubt on the long-standing view that just a few genetic mutations underlie many hereditary diseases. In reality, those diseases are probably caused by a wide variety of extremely ...
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