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Heredity

Placeholder root. This file is an overview only; detailed nested scaffolding will be built later.

Heredity is the body’s instruction set — the information passed from parents to children that shapes how a human is built and run.

  • DNA and genes — how instructions are stored as a chemical code.
  • The genome — the full set of human instructions, and how much of it we all share.
  • Inheritance — how traits pass from one generation to the next.
  • Genes and environment — how the instruction set interacts with lifestyle, diet, and surroundings.
  • Variation and mutation — how differences between people arise, and when they cause disease.

Genetics is not an organ system and not a life stage; it underlies all of them. Every cell carries the same genome, and that genome influences every system in this collection — which is why heredity sits as its own top-level entry point.