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Name _______________________ Period __________ Date _______ DNA NOTES DNA = ______________________________ 1. DNA is _________________________________________________________________ __________________________________________________________________________ 2. DNA is located __________________________________________________________ 3. DNA is composed of: (1) (2) (3) 4. How is DNA held together?? ______________________________________________ 5. Label and color the parts of DNA: 6. DNA model - “_________ ___________” (1) Sides of ladder are made up of _______________________________________ (2) Sides are connected by ______________ bases (steps to the ladder) (3) __________________________ - another word for twisted ladder 7. Here is a 3-D diagram of DNA. Label the parts: 8. The names of the nitrogenous bases are: (1) (2) (3) (4) 9. DNA Replication (1) Every time a cell ______________, copies of ______ are made (2) _____________________ – ______________ of __________ 10. Fill in the proper base: Adenine always pairs with _____________________. Cytosine always pairs with _____________________. Thymine always pairs with _____________________. Guanine always pairs with _____________________. 11. How are you going to remember this?? ____________________________________ 12. Who figured out the structure of DNA?? ___________________________________ 13. Genes (1) DNA contains ___________ and __________ for ____________ (2) Genes - sections of _______ that controls ______________ human _________________ such as __________ and ___________________________ Genes are located on chromosom es.