Genes, the hereditary units, are located in the A)nuclear membrane B)chromosomes C)lysosomes D)cell membrane
Option B) A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomal DNA encodes most or all of an organism's genetic information; some species also contain plasmids or other extra-chromosomal genetic elements
