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WARM UP #1 2/28

WARM UP #1 2/28. Ch 12 NOTES #1 2/18. DNA intro. DNA found in chromosomes in the nucleus of EVERY CELL cell (except red blood cells) Contains all the info to make you Every cell in your body has the same DNA. DNA – Deoxyribonucleic acid Each section of DNA is a gene.

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WARM UP #1 2/28

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  1. WARM UP #1 2/28

  2. Ch 12 NOTES #12/18 DNA intro

  3. DNA found in chromosomes in the nucleus of EVERY CELL cell (except red blood cells) Contains all the info to make you Every cell in your body has the same DNA

  4. DNA – Deoxyribonucleic acid Each section of DNA is a gene

  5. WATSON AND CRICK Discovered the shape 1950’s DOUBLE HELIX - twisted ladder

  6. NUCLEOTIDES Pieces that make DNA Sugar and phosphate (sides) Bases (middles)

  7. BASES Adenine A pair together Thymine T Cytosine C pair together Guanine G

  8. WHAT MAKES EVERYONE DIFFERENT OR DIFFERENT GENES?

  9. Order of bases makes each DNA different The order will make a protein Protein makes the trait HUMANS = 46 chromo. 3 billion base pairs in every chromosome!

  10. WHY STUDY DNA? 1. Can learn about diseases passed on 2. Can id people 3. Can help solve crimes 4. Can show relatives 5. Can create new better species

  11. Related individuals • DNA has markers that can show relationships. • For instance, S2 (the adopted and non-biological son of MOM and DAD) has different bands than biological kids • While D1, D2, S1 are all biological daughters and sons of MOM and DAD (thou’ they have different mothers or different fathers), their DNA show similar patterns as MOM or DAD do.

  12. Parentage tests • The child (C) will share one band with the biological mother (M) and one band with biological father. • Who is the father of the child?

  13. DNA sample from hair Victim Suspect 1 Suspect 2 Suspect 3 Identify the suspect responsible for the crime out of above evidence

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