How To Concoct Personal DNA: Helpful Or Harmful?

Technology is frightening; although it is a blessing, its outsourcing abilities threaten the sanctity of millions of job holders. Neil felt this way. The revolutionizing molecular biology field made paleontology seem as if it would be a thing of the past. However, twenty years later, Neil still continues to play in the dirt and rocks. That is because “fossils and the geological record remain a very powerful source of the past” (Shubin 139). Fossils, unfortunately, aren’t always salvageable but DNA is, and it is able to answer where fossil records remain silent. DNA is useful in two aspects. The first is that it is accessible. In fact, Neil gives a step-by-step tutorial on how to concoct personal DNA batches in your home. The tutorial is so intriguing that I was even guilty of creating my own white glop. The second aspect is that DNA is able to tell a long history

The molecular level of smell is very interesting. Like an iPhone with its mixture of apps and music, genes devote a portion of their storage to only smell: a whopping three percent (resulted from the breakthrough work of Buck and Axel). Furthermore, humans are able to “discriminate among five thousand to ten thousand odors” (Shubin 141). The way this works is that smell functions in a lock-and-key mechanism. The lock is the odor molecule, and the key is the nerve receptor. We breathe in air molecules, and they hook on to the millions of nerve receptors. The stimulation of various receptors leads to the production of one smell. Fish behave in the same way. However, unlike humans, fish separate odor molecules from water. The connection comes from the way primitive fish smell. For example, if you examine the smelling receptors of lampreys and hagfish, you notice that these jawless fish have a combination of both air and water molecules. This shows that the way animals have smelled has diversified and evolved to conform to the needs of