We also have the seed coat color. Now, within the DNA, the DNA actually consists of these sequences of nucleotides. Now, some of these sequences do not actually code for any protein, but those sequences of nucleotides that do contain the information that do code for a special type of protein that, once built, is used to help us express the traits. Those special segments of DNA are known as genes. So a gene is a special segment of the DNA, the sequence of nucleotides that codes for a protein that is used to help us express those traits and those characteristics that are found on that individual, on that organism. Now, along the chromosome, so this is a single chromosome.