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There is no gene "for" such unambiguous bits of morphology…

“There is no gene "for" such unambiguous bits of morphology as your left kneecap or your fingernail. [...] Hundreds of genes contribute to the building of most body parts and their action is channeled through a kaleidoscopic series of environmental influences: embryonic and postnatal, internal and…” quote by Stephen Jay Gould
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“There is no gene "for" such unambiguous bits of morphology as your left kneecap or your fingernail. [...] Hundreds of genes contribute to the building of most body parts and their action is channeled through a kaleidoscopic series of environmental influences: embryonic and postnatal, internal and external. Parts are not translated genes, and selection doesn't even work directly on parts.”

Stephen Jay Gould

About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Biological traits arise from many interacting genes and environmental factors, not single “genes for” specific parts.

In simple terms: Body parts result from complex gene‑environment interactions.

Key Takeaway

Recognize the complexity of development.

Themes

biology evolution developmental genetics complexity

Mood

thoughtful analytical

Type

scientific educational

When to use this quote

  • medical research
  • education on genetics
  • public health messaging

Key Concepts

polygenic inheritance gene‑environment interaction developmental pathways

Questions to Reflect On

  • How does this view affect medical approaches?
  • What are the implications for genetic determinism?
A Different Perspective

Oversimplified explanations can mislead understanding.

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