| A | B |
| What does a nucleoSide consist of? | deoxyribose and a nitrogen base |
| What are the 4 nitrogen bases? | adenine, thymine, cytosine, guanine |
| What connects the nucleosides? | Phosphates |
| What pairs with adenine? | Thymine |
| What pairs with cytosine? | Guanine |
| What does a nucleoTide consist of? | deoxyribose, a nitrogen base and phosphate |
| What is Chargaff's Rule? | That A pairs with T and C pairs with G |
| What are antiparallel strands | The two strands of DNA in the double helix run in different directions |
| What connects the nitrogenous bases in 2 DNA strands togethertogether? | Hydrogen bonds |
| What is the monomer of DNA? | Nucleotides |