Question

how is nucleoid different from nucleolus

Answer 1

nucloid is small in size
nucloid donot have double memberane

Answer 2

nucleolus contains DNA and RNA which is a part of nucleus which is a double membrane bound cell organelle.
nucleoid is free double stranded circular DNA which is present in the cytoplasm without any membrane.
nucleolus is generally present in eukaryotes.
nucleoid is generally found in prokaryotes.
nucleolus is present in nucleoplasm .
nucleoid is present in cytoplasm