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Ch 11 Biology
Biology, Ch 11
| Question | Answer |
|---|---|
| What is DNA? | Determination of an organisims traits. |
| How many steps are there to replicating DNA? | Four. |
| What is the first step to replicating DNA? | Enzymes break the bonds of the double helix. |
| Second step to replicating DNA? | Free floating nucleotide attach to the correct pair of strand. (Hydrogen bond to nucleotide) |
| Third step to replicating DNA? | Phosphate groups fill in the gaps between the pairs to form the backbon of the double helix. |
| Last step to replicating DNA? | It just continues until you have two distinct DNA molecules. |
| What does each molecule contain? | One strand from the parent molecule. |
| What are the "letters" that bond? | A, T, G and C |
| How do the "letters" bond? | A with T and G with C.. ALWAYS ! |
| What is the actual name for A? | Adenine. |
| What is the actual name for T? | Thymine. |
| What is the actual name for G? | Guanine. |
| What is the actual name for C? | Cytosine. |
| What is DNA? | It's a polymer. |
| What is DNA made up of? | Subunits called, Nucleus. |
| What letters have two hydrogen bond? | A and T. |
| What letters have three hydrogen bonds? | G and C. |