Every single person in this planet has their own DNA, not even identical twins! Your DNA is just yours and no one can change that. That is like your own social security number that only you have a unique thing, same as your DNA, no one has your DNA but you. DNA has saved a lot of people from being stuck in jail for something they didn’t do, or even has saved lives. DNA wasn’t discovered many years ago, actually the first crime scene that was solved by DNA was in 1989. DNA fingerprinting can uncover a crime scene that someone has committed. For example, if someone has left their fingerprints at a crime scene, more than likely we found the person who has made the crime! To find a DNA fingerprint, a scientist has to first take the DNA out of the nucleus cell. The cell that is used to get a DNA fingerprinting can be a skin cell, a hair root cell, or even a check cell that gets washed out of your mouth in your spit. This is because your unique DNA is the same in all or your cells. DNA fingerprinting can be used when someone has left trace of their cells.
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Although, people don’t have the same strand of DNA, they have some part if they are related to each other. If the people from the lab get a root hair from two people, and observes it under a microscope, he/she can figure out if the people are related or not. Either with a root hair, or some blood, they all have the same cells. There has been cases where a family has lost one of their loved ones, and in order to find them, they have to give them hair, or a tooth brush so the detective can find that missing person. Maybe they’ve left some cells behind that can lead to where that person is at. When they get to find that person, they can also find out who was responsible for the kidnap because the fingerprints would be on that person or any other trace around the room or on
Although, people don’t have the same strand of DNA, they have some part if they are related to each other. If the people from the lab get a root hair from two people, and observes it under a microscope, he/she can figure out if the people are related or not. Either with a root hair, or some blood, they all have the same cells. There has been cases where a family has lost one of their loved ones, and in order to find them, they have to give them hair, or a tooth brush so the detective can find that missing person. Maybe they’ve left some cells behind that can lead to where that person is at. When they get to find that person, they can also find out who was responsible for the kidnap because the fingerprints would be on that person or any other trace around the room or on