Final answer:
Chromosomes contain coded information that controls the hereditary of traits such as eye and hair color. Genes on the same chromosome, called linked genes, can result in certain characteristics being inherited together. Multiple genes and alleles contribute to eye and hair color in humans.
Step-by-step explanation:
Chromosomes, which are long strings of genetic material called DNA, contain coded information that controls the hereditary of particular traits, such as eye and hair color.
A gene is a sequence of DNA that makes up a portion of a chromosome and controls a specific trait. For example, there are multiple genes and alleles that contribute to eye and hair color in humans.
Genes for certain traits can be located on the same chromosome, known as linked genes. Linked genes can result in certain characteristics being inherited together, like blonde hair with blue eyes and brown hair with brown eyes.