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One set is inherited from the father, and one set is inherited from the mother. A DNA is a sort of a bio molecule. The entire DNA in cells can be found in individual pieces that are called chromosomes. The main difference between DNA and chromosome is regarding the role of genes. DNA stands for deoxyribonucleic acid. The DNA is basically made up of cytosine, adenine, thymine and guanine. When you arrange these four bases to create a particular segment, it is called a gene.
Genes are sections of DNA. A single gene is marked in Figure 1.1.6. Each chromosome can have over 1000 genes. The difference between one gene and the next is the:â¢ order of bases along the DNA strandâ¢ length of the DNA strand.The order of the bases along the DNA strand is the genetic code..1 DNA the molecule Organisms on Earth have many differences. Not many people would confuse an elephant with an earthworm, a tree with a tarantula or a penguin with a python. However, at one level the differences between organisms are not as great as you might think.