where are chromosomes found in multi cellular organisms
Chromosome Eukaryotes (cells with nuclei such as those found in plants, fungi, and animals) possess multiple large linear chromosomes contained in the cell's nucleus. Each chromosome has one centromere, with one or two arms projecting from the centromere, although, under most circumstances, these arms are not visible as such. In addition, most eukaryotes have a small circular mitochondrial genome, and some eukaryotes may have additional small circular or linear cytoplasmic chromosomes.
Extrachromosomal DNA In prokaryotes, nonviral extrachromosomal DNA is primarily found in plasmids whereas in eukaryotes extrachromosomal DNA is primarily found in organelles.[2] Mitochondrial DNA is a main source of this extrachromosomal DNA in eukaryotes.[1] Extrachromosomal DNA is often used in research of replication because it is easy to identify and isolate.[2]