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DNA Extraction Lab

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DNA Extraction Lab Fantastic Facts About DNA The Human Genome In the nucleus of every somatic cell in our bodies,we have a full set of 46 chromosomes. – PowerPoint PPT presentation

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Title: DNA Extraction Lab


1
DNA Extraction Lab
  • Fantastic Facts
  • About DNA

2
The Human Genome
  • In the nucleus of every somatic cell in our
    bodies,we have a full set of 46 chromosomes.
  • All of that DNA is folded and packed into a
    nucleus that has a diameter of 0.005 mm
  • In the same way computer binary code (0s and
    1s) is made of bits of information, DNA has bits
    of information composed of pairs of nitrogen
    bases. As link with Ts and Cs with Gs. Each
    base pair is one bit of information in the DNA
    code. The DNA in one nucleus consists of 6
    billion base pairs!!

3
Going Further!
  • If we straightened out all the DNA from all 46
    chromosomes in one cell and laid them in a
    straight line end to end, they would reach a
    length of 2 meters.
  • A typical adult human is composed of 60 trillion
    cells. (60,000,000,000,000)
  • The distance from the earth to the moon is
    380,000 km.
  • If we laid every strand of DNA from every cell
    end to end, calculate how many times it would
    reach to the moon and back.

You may want to use scientific notation in
figuring this out. Show all work to get extra
credit.
4
The Solution
Each cell has 46 chomosomes. Unraveled and laid
end to end in a straight line they would stretch
2 meters.
Every pair of nucleotides is one bit of
information. In the 46 chromosomes there are 6
billion bits of information.
She has about 60 trillion cells!
  • First, determine the total length of all the DNA
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