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Last Class

Discover the wonders of DNA, the molecule that shapes our hereditary characteristics. Learn about its components, structure, and how it determines our genetic code. Explore the creation of DNA strands and the role of hydrogen bonding between base pairs. Unravel the genetic mysteries encoded within our cells. Visit the link for an interactive tour of DNA.

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Last Class

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  1. Last Class • Protein • Carbohydrate • Lipid • Nucleic acid

  2. DNA What is it?

  3. DNA • is an abbreviation for Deoxyribonucleic Acid • is the polymeric molecule whose chemical sequence determines individual hereditary characteristics

  4. What makes up DNA?

  5. What makes up DNA? • Phosphates • Deoxyribose sugar • Nitrogen bases

  6. DNA and RNA Structures

  7. Creation of DNA strands Hydrogen Bonding Between Base Pairs (A to T and G to C)

  8. DNA is like a ladder

  9. DNA determines characteristics • The DNA bases (A, T, C, and G) make a code of letters • These letters make “words” which are called genes • These “words” make “sentences” called the genetic code • Our cells “read” these “sentences” and perform special functions

  10. http://learn.genetics.utah.edu/units/basics/tour/dna.swf

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