where in the cell do we find dna
In the plant kingdom DNA or deoxyribonucleic acid is contained within the membrane-bound cell structures of the nucleus mitochondria and chloroplasts. Since the nucleus is so small the DNA needs to be tightly packaged into bundles known as chromosomes. Where Are Your Dna Chromosomes And Genes Diagram Chromosome Genetics Activities Heredity Human DNA extracted as a single molecule from a single cell extends to just under two metres long but is ordinarily segmented and stuffed into 23 pairs of chromosomes in each cell. . In addition to nuclear DNA a small amount of DNA in humans and other complex organisms can also be found in the mitochondria. Because the cell is very small and because organisms have many DNA molecules per cell each DNA molecule must be tightly packaged. Nearly all the DNA in a eucaryotic cell is sequestered in a nucleus which occupies about 10 of the total cell volume. That means we lose around 50 million ...