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Intro to DNA
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DNA fun facts How long does it take one of your cells to completely copy its DNA? 8 hours In the human DNA code is made up of base pairs: A-T and G-C on each side of the DNA strand. How many base pairs are in a DNA strand? 3 billion If you were to recite the order of the ATCGs in your DNA starting tomorrow morning, at a rate of 100 nitrogen bases per minute, how long would it take you to recite one entire DNA strand if you didn’t stop to eat, drink, sleep or go to the bathroom, etc? 57 years
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DNA fun facts Autosomal cells have how many chromosomes? 46
Sperm and egg have how many chromosomes? 23 If you were to stretch out the DNA from your 46 chromosomes in just one cell and lay it end to end, how long would it be? Over 2 yards If the total DNA in one person were laid out in a straight line, how long would it be? 30 times the distance to the sun
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DNA fun facts How many cell nuclei could you fit across the period on your paper? 1000 How many threads of DNA could you fit across the same period? 1 million If you wanted to store all the information from a strand of DNA on a computer, how much storage space would it take up? 3 GB
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DNA fun facts How genetically similar are you to any other random human on the planet? (percentage wise) 99.9% How much genetic material do we as humans share with the bacteria e. coli? (percentage wise) 7% How much genetic material do we as humans share with earthworms? (percentage wise) 21%
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DNA fun facts How much genetic material do we as humans share with the a zebra fish? (percentage wise) 85% How much genetic material do we as humans share with a mouse? (percentage wise) 90% How much genetic material do we as humans share with a chimpanzee? (percentage wise) 98% What percent of our DNA codes for proteins? 2% The dominant trait is always the better trait to have. False
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Darwin’s Ear Points
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Tongue Rolling DOMINANT RECESSIVE
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Attached Ear Lobes Dominant Recessive
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Hitchhiker’s Thumb
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Left handed Left handed: Recessive Right handed: dominant
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Freckles Dominant Recessive
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Bent little finger Bent: dominant Recessive: straight
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Curly Hair Dominant Recessive
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Longer 2nd toe Dominant Recessive
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Eye Color Dominant Recessive
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Widows Peak Dominant Recessive
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Butt Chin/Cleft Chin Dominant Recessive
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Hand Clasping Dominant Recessive
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Mid-digit hair Dominant Recessive
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Dimples Dominant Recessive
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Arm Crossing Dominant Recessive
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Lip shape Dominant Recessive
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Nose Bump Dominant Recessive
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Index finger longer than ring finger
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Hair Color
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Vulcanism
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