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How DNA Works
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DNA contains genetic material that gets passed down to each successive generation. Learn about DNA and find out what information each strand of DNA contains.
How DNA Profiling Works
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How DNA profiling works involves creating a DNA profile. Learn how DNA profiling works and how a DNA profile works.
What Causes Mutations? Piecing Together DNA's Puzzling Edits
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DNA mutation can be caused by a wide variety of factors. Learn about some of the many causes of DNA mutation in this article form HowStuffWorks.
How DNA Evidence Works
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DNA evidence is explained in this article from HowStuffWorks. Learn about DNA evidence.
What can your spit tell you about your DNA?
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Doctors always want your blood, but one day, a health care professional may ask you to open up and say, "Ptooey!" Why? Your spit holds a mother lode of biological information.
Do People and Bananas Really Share 50 Percent of the Same DNA?
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You probably feel like you have very little in common with that banana lying on your kitchen counter. But science says you do! So, how is this possible? And is that stat accurate? We talk to the scientist who did the research.
Commercial Ancestry Tests Can Reveal How Much Neanderthal DNA You Have
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At least two commercial DNA testing services offer users information on heritage coming from coupling between ancient humans and other species.
Why DNA Evidence Can Be Unreliable
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DNA found at a crime scene doesn't automatically mean the person matching it is guilty, say researchers of new forensics guide.
How to Neutralize Asparagus Pee
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Is it better to be grossed out by the smell of your asparagus pee, or not to be able to smell it all? A new study explains why some of us can detect this unique odor.
Why Do Most Humans Have 23 Pairs of Chromosomes?
science.howstuffworks.com/life/genetic/23-pairs-chromosomes.htm
Nearly every living cell is made of DNA, and every chromosome contains exactly one molecule of DNA. But not all cells are made of the same number of chromosomes.