A gene is a relatively small piece of genetic data with the capacity to encode proteins.
Type III genes are involved in cell-to-cell signaling, whereas type II genes are a complicated mixture of all three types. Type I genes often function as immunological responses or sensory receptors, while type III genes are involved in cell-to-cell signaling.
<u>Function:</u> A gene is a section of DNA that describes the arrangement of amino acids in a protein's polypeptide chain. The primary purpose of genes is to create an organism that resembles its parent organism.
<u>Structure</u>: With the exception of certain viruses, which have genes made of a chemically related substance called ribonucleic acid, most genes are made of deoxyribonucleic acid (DNA) (RNA). Two strands of nucleotides that spiral around one another to resemble a twisted ladder make up a DNA molecule.
<u>Location:</u> Inside cells, there are little spaghetti-like structures called chromosomes that contain the genes. There are many billions of cells in our body. All living organisms are made up of very tiny components called cells.
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