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Humans Horrorfying Use of Radium
Just about everyone in the world will see an image of a double helix and immediately identify it as DNA. This molecule is two polynucleotide chains that carry the genetic blueprint that makes it possible for organisms and viruses to grow and reproduce. Each cell uses the information in DNA as a guidebook to create the proteins needed for life; it also acts like a police officer to help direct the behavior of cells.
Nothing is perfect, not even DNA. Sometimes a mistake happens during replication. Sometimes the error can cause diseases or even death. Other times it may lead to an evolutionary shift in an organism. One way DNA can be damaged is when an organism is subjected to radiation exposure. Radiation can break the bonds between atoms or ionize water molecules and form free radicals. Radiation damage to DNA can change the proteins produced by cells, modifying cell behavior, and may lead to diseases such as cancer. Different forms of radiation cause different mutations in cells.
#radium #radiumchocolate #radiumbread #radiumtoothpaste #radiumgirls
Every Human Contains Radiation
A by-product of nuclear explosions is the production of carbon-14. When carbon-14 joins the atmosphere, it enters the food chain and gets bound up in the cells of living organisms. There was so much carbon-14 released into the atmosphere that researchers in 2020 can still detect it in the DNA of humans born today. That’s right; it is inside of you right now. How unsettling is that?
#radiation #carbon-14 #radiationDNA
Eyeballs with Teeth
Whale sharks are gentle, giants that swim in tropical seas and scoop up plankton. They also have a sharp eye. According to new research, tiny teeth cover their eyes.
Whale sharks, along with some other shark species, have dermal denticles that cover their bodies like scales. Dermal Denticles are shaped like the letter V (as in Victory). The unique shape decreases the drag and turbulence of water, allowing them to swim faster. It also acts as an armor against other sea creatures that might bite them.
#whalesharks #eyeballteeth #dermaldenticles--- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app --- Send in a voice message: https://anchor.fm/sciencebytes/message Support this podcast: https://anchor.fm/sciencebytes/support
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