thank you v much .But after a lot of research i Got the following answer;
nucleoid :
1.Nucleoids are found in prokaryotes.
2.it is an irregularly shaped region within the cell and contains aal or most of the genetic material.
3.it is composed of nucleoid protein which helps to maintain the supercoiled structure of nucleic acid.
4.It contains small amount of RNA.
nucleosome:
1.it is found in eukaryotes.
2.nucleosomes are the basic unit of DNA packaging in eukaryotes,consisting of a segment of DNA wound around a histone core.
3.it is composed of histone proteins which acts as a spool around which DNA winds and thus enabling the compaction necessary to fit large genomesof eukaryotes inside nuclei.
4.it doesnt contain RNA.(having doubt in this:( )
this i made after studying about nucleosomes and nucleoid ...........Please check it ands do the corrections.