Chromosomes Where your DNA is

An organism's DNA is found in a cellular structure called a chromosome. Some organisms have all their DNA on one chromosome, while other organisms have their DNA spread across several chromosomes. The DNA of sexually reproducing organisms, like animals and humans, is arranged on pairs of chromosomes. When these organisms make offspring, the offspring get one set of chromosomes from each parent. Humans, for example, have 23 pairs of chromosomes. Each of us got a set from each parent, meaning we each have half of Mom's genes and half of Dad's.

DNA isn't an abstract concept. It's an actual thing that appears in a particular place (the chromosomes) in each of your cells. And every cell has a copy of the chromosomes.

Was this article helpful?

0 0

Post a comment