Which Came First - The Chicken or the Egg? | Summary and Q&A

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January 24, 2013
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Which Came First - The Chicken or the Egg?

TL;DR

The age-old debate of whether the chicken or the egg came first is still unanswered, but technically, the egg came first.

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Questions & Answers

Q: Did the egg come before the chicken?

Technically, yes. Animals that lay eggs existed before chickens, so the egg came before the chicken. However, if we specifically refer to the chicken's egg, it depends on the definition of a chicken's egg.

Q: What's the significance of OV-17 protein in the formation of chicken eggs?

OV-17 protein is essential for the formation of the chicken egg's shell. It can only be found in a chicken's ovaries, suggesting that a chicken is required for the formation of a chicken's egg.

Q: How do mutations play a role in the chicken and egg debate?

Mutations in DNA over thousands of generations can lead to the creation of new species. In the case of chickens, a slight genetic mutation in a proto-chicken could have led to the first chicken, which grew inside an egg.

Q: Can we determine if it was a chicken egg or a proto-chicken egg?

The classification of an egg depends on nomenclature, but ultimately, regardless of whether it was a chicken egg or a proto-chicken egg, the first chicken came from an egg. So, technically, the egg came first.

Summary & Key Takeaways

  • Animals that lay eggs existed before chickens, so technically, the egg came before the chicken.

  • However, if we specifically refer to the chicken's egg, it would require a cyclic cause and effect. If a chicken comes from an egg, where did the egg come from?

  • Supporters of the chicken argue that the essential protein for chicken eggs can only be found in a chicken's ovaries, making the chicken come first. But it depends on the nature and definition of a chicken's egg.

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