Why does bacteria not have an nucleus?

Answer 1

bacteria , are by definition simple creatures which have a binary division. This is in part due to the fact that it does not have a nucleus like the eucaryotic counterparts. However the reason that it doesn't have a nucleus is because it has a nuclecoid. The only purpose for this organism is to replicate itself., nothing else, so therefore it lacks the more complex organalles such as a vacuole, mitocondria. However it does have a ribosome.

The simple answer would be that it only wishes to replicate so having a nucleous would require a more complex cell division.

Answer 2

Bacteria do not have a nucleus because they are prokaryotic organisms, which means their genetic material is not enclosed in a membrane-bound nucleus. Instead, their DNA is located in the cytoplasm in a region called the nucleoid. This simpler structure allows bacteria to replicate quickly and adapt to changing environments efficiently.