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KS3 Activate 3 Kerboodle: Explaining DNA fingerprinting

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All people have different DNA fingerprints

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Watch the video. Then write one thing you learned form the video that STARTS with the next letter that is open in the alphabet. EVERY person will add to the padlet - each person gets one letter.

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CSI’s investigate the samples in the lab first the extract DNA from the cells!

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blood can be tested by extracting enzymes in the cells

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DNA fingerprinting is done by extracting DNA samples from blood.

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Enzymes cut different peoples DNA in different places creating the different patterns in the bands in the gel electrolysis machine

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Forensic scientists separate DNA cells from the sample and compare it to known DNA samples.

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Glass samples with blood on them can be used to test who's DNA was found at the crime scene.

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Hemoglobin is the protein in blood.

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Investigating the crime scene will help with finding possible blood stains.

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Justifying Fingerprints is done through a particular order from getting the fingerprint to analyzing it as well.

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Knowing the DNA fingerprint proves that a person has been there at some point in time

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Lots of crimes can be solved using fingerprints and DNA.

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Many types of evidence such as blood, hair, and/or skin can be collected from a crime scene.

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No one can get away with a crime cause you can always leave DNA behind

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Officers use DNA fingerprinting

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Police can use blood found at a crime to identify the culprit through DNA fingerprinting.

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Questions like who done did the crime are answered with DNA

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Real police can use blood found at the crime scene to find out who the culprit is by using DNA fingerprinting