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  "path": "/news/2026-04-overlooked-ribosomal-dna-human-size.html",
  "publishedAt": "2026-04-14T19:40:03.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "Ribosomal RNA (rRNA), made from many copies of ribosomal DNA (rDNA), is the core component that powers ribosomes—protein-building machines in our body. It helps build proteins by linking amino acids together, and can also fine-tune this process by interacting with other proteins and messenger RNA (mRNA). For a long time, scientists assumed ribosomes were more or less identical within a species. A new study in Cell Genomics is challenging that idea.",
  "title": "Overlooked ribosomal DNA may help explain human size differences"
}