| A | B |
| Nucleic acids allow... | genetic information to be stored and transferred from parents to their offspring. |
| Nucleic acids are composed of... | subunits known as nucleotides |
| DNA nitrogen bases are... | adenine, thymine, guanine, and cytosine. |
| RNA nitrogen bases are... | adenine, uracil, guanine, cytosine |
| is there a difference in phosphate groups of DNA and RNA molecules... | no, there is no differnce |
| how many strands does DNA have? | two strands of nucleotides |
| what nitrogen bases matches up with adenine? | Thymine |
| what nitrogen base matches up with guanine? | Cytosine |
| what is the alternating pattern of sugar and phosphate group is known as? | sugar-phosphate backbone |
| complementary is... | two nitrogen bases that follow the base pairing rules. |
| what holds the complementary base pairs together? | weak bonds known as hydrogen bonds |
| what is the shape of DNA look like? | a twisted ladder |
| The twisted ladder shape is known as... | The Double Helix |
| How many steps does DNA occur in? | Two steps |
| The secound step of the replication fork is? | repairing |
| A to T, G to C allows cells to create? | identical copies of DNA |
| what is the Y-shaped fork known as? | Replication Fork |
| the first step in DNA replication is? | Breaking of hydrogen bonds between complementary base pairs of the parent molecule |
| What type of replication is where each daughter molecule cantains half of the parent molecule? | semi-conservative |
| what are the two types of sugar molecules? | deoxyribose and riboes |