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Decay Quote by Richard Dawkins

“senile decay is simply a by-product of the accumulation in the gene pool of late-acting lethal and semi-lethal genes, which have been allowed to slip through the net of natural selection simply because they are late-acting.” quote by Richard Dawkins
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““senile decay is simply a by-product of the accumulation in the gene pool of late-acting lethal and semi-lethal genes, which have been allowed to slip through the net of natural selection simply because they are late-acting.””

Richard Dawkins

About This Quote

Source Book: The Selfish Gene, Richard Dawkins, 1976

Late‑acting harmful genes persist because natural selection acts mainly before reproduction, so they accumulate and cause senile decay.

In simple terms: Late‑acting genes survive selection, causing aging.

Key Takeaway

Consider how evolutionary trade‑offs affect health.

Themes

evolution aging genetics trade‑offs

Mood

thoughtful analytical

Type

scientific educational

When to use this quote

  • medical research
  • public health policy
  • genetic counseling
  • aging studies

Key Concepts

senescence mutation load natural selection

Questions to Reflect On

  • How do late‑acting genes influence lifespan?
  • Can we mitigate their effects?
A Different Perspective

Selection pressure weakens after reproduction, limiting prevention.

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