Did chicken came from egg or chicken?

The Science:

* Eggs came first: Biologically, eggs existed long before chickens. Dinosaurs laid eggs, and over millions of years, evolution led to the development of birds, including chickens. So, the first "chicken egg" was likely laid by a creature that wasn't quite a chicken yet.

* Chicken genes determine the egg: A chicken egg contains the genetic material (DNA) that will determine whether the embryo develops into a chicken. So, in a way, the chicken's genes are present in the egg before the chicken hatches.

The Catch:

The problem with the question is that it tries to establish a linear cause-and-effect. It's like asking "Which came first, the tree or the seed?" They're part of a continuous cycle.

Simplified Answer:

* Evolutionary perspective: Eggs were around long before chickens, but chickens eventually evolved from egg-laying ancestors.

* Genetic perspective: The chicken's DNA is present in the egg, so the chicken's genes are technically "in" the egg before it hatches.

It's a fun thought experiment, but ultimately, there's no simple answer!