JEANS
Not blue jeans though; those are made of denim. The jeans that we're going to be talking about today are spelled G-E-N-E-S. "Genes" are just a weird way of identifying a specific section of a DNA molecule in an organism. Today though, the subject is "genetic mutations," not genes. So what is a genetic mutation?
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So Trippy |
A genetic mutation happens when a DNA molecule is copied wrong. Most of the time, the change is corrected by DNA repair, but when it isn't the mutations usually are harmful to your body. Examples of harmful mutations, or deleterious mutations, are cancer, which causes uncontrolled cell growth, and sickle-cell anemia, which makes your blood cells be shaped like crescents instead of circles.
Sometimes mutations can be beneficial though. Occasionally people are born without some or all of their wisdom teeth, which is an example of beneficial mutations. Some beneficial mutations can spread across a whole population. That is the basis of evolution.

Mutations can be caused by many different things. Radiation, for example, can break down cells and nucleic acids and cause mutations. Exposure to chemicals can also cause mutations.
Well, that's all for today, hope you liked the post. Bye!
Links:
Blue Jeans Picture
DNA Animated Gif
Sickle Cell Anemia Picture
Radiation Picture
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