Question

did the egg came first or the hen

Answer 1

The first chickens. The very first chicken in existence would have been the result of a genetic mutation (or mutations) taking place in a zygote produced by two almost-chickens (or proto-chickens). This means two proto-chickens mated, combining their DNA together to form the very first cell of the very first chicken

Answer 2

This is one of the questions from the list of unsolved questions. Some scientists favour that the egg came first and many favour that the hen came first. This question is slightly ambiguous. However, most people agreed that the egg came first. This conclusion can be supported by the fact that with respect to the evolution the egg laying capacity was there even in invertebrates and the hens came into existence after a very long time