Identify the correct relationship between chromosomes and DNA.

Chromosomes and DNA are closely related within a cell's nucleus and are involved in storing and transmitting genetic information, but they are not the same thing.

• DNA (Deoxyribonucleic Acid): DNA is a molecule that carries the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms. It is a long, double-helix structure composed of nucleotides. Each nucleotide consists of a phosphate group, a sugar molecule (deoxyribose), and one of four nitrogenous bases (adenine, guanine, cytosine, or thymine). The sequence of these bases along the DNA strand forms the genetic code.
• Chromosomes: Chromosomes are structures made up of condensed DNA and proteins found within the nucleus of a eukaryotic cell. They are the organized and packaged form of DNA. During cell division, DNA condenses and wraps around proteins called histones to form chromosomes. Chromosomes are visible under a microscope and appear as thread-like structures. Humans typically have 46 chromosomes (23 pairs) in most cells.

The relationship between chromosomes and DNA is that chromosomes are made of DNA. DNA wraps around proteins called histones, forming structures known as nucleosomes. Multiple nucleosomes are further coiled and condensed into a more compact structure, which eventually forms the visible chromosome.