Spiders have unique genetics that enable them to make silk. There are two key proteins needed to give the spider the ability to create silk. These proteins are called MaSp1 and MaSp2. Scientists are using this to help them in medicine and engineering. By studying the genes and amino acid sequences, scientists are attempting to create genetically modified silk worms, creating a larger replicant giant silk web. This will be useful in many areas of our lives, considering the incredible strength of the web. In comparison to size, the average spider's silk web is as strong as steel and almost as tough as some bulletproof materials. The genetics of spiders are not only of use to spiders, but have proved to be of use to humans too.