#BioDub Diagram from the Chapter 12-1 (12-2) Notes

Please note the following:

• One DNA nucleotide consists of a deoxyrobose, a phosphate, and a nitrogenous base
  
• There are 4 different bases: adenine, thymine, guanine, and cytosine
• Deoxyribose and phosphate make up the backbone
• The bases connect the two strands
• The bases are bound to the deoxyribose
• Guanine (G) binds to cytosine (C) with 3 hydrogen bonds
• Adenine (A) bind to thymine (T) with 2 hydrogen bonds
• A and G are purines, larger molecules
• T and C are pyrimidines, smaller molecules

Unit 4: Genetics & Heredity