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Bioethics: Does Science Have Legal Limits?
By Warren Lowell
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Welcome
• Hello class welcome to Friday
September 16th• This class will be very informational at a fast pace,
therefore I will be doing most of the engaging for now.
• Please be ready to take notes and ask questions when necessary.
• Suggestion use an audio recording device to record lesson
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WATSON & CRICK DNA MODEL
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DNA THE REASON FOR BIOETHICS
• First we need to explain the history and components of DNA “the strands of life” and how they tie into our topic.
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DNA Deoxyribose Nucleic Acid
• This chemical substance is present in the nucleus (the brain) of all cells in all living organisms• DNA controls:
• all the chemical changes in cell• type of cell which is formed• type of living organism mammal; human or lion
• The strand of life• Watson & Crick model• Interactive strands
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DNA MOLECULE
• DNA composed of:• very large molecule • sub-units called nucleotides
• Nucleotides composed of:• Sugar called deoxyribose• Phosphate group PO4• Organic base
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The most common organic bases are
Adenine (A)
Thymine (T)
Cytosine (C)
Guanine (G)
The bases
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The bases always pair up in the same way
Adenine forms a bond with Thymine
and Cytosine bonds with Guanine
Bonding 1
Adenine Thymine
Cytosine Guanine
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PO4
PO4
PO4
thymine
PO4
PO4
PO4
PO4
adenine
cytosine
PO4
guanine
Bonding 2
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PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
PO4
Pairing up