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11 Cards in this Set
- Front
- Back
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Define Watson and Crick Pairing |
GCAT
Guanine > Cytosine Adenine > Thymine |
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What is the uniform chemical reaction that assembles are polymers for us? |
Dehydration reaction |
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Every nucelotide is made up of what three structures? |
nitrogenous base five carbon sugar called pentose phosphate group |
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When linking monomers together to create a sugar phosphate backbone for nucelic acids, where do the enzymes link the monomers? |
Only on the 5' end and the 3' end at the methylene group CH2 and the hydorxyl group |
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What is the enzyme that synthesizes DNA ? What is its limitation? |
DNA polymerase can only extend off the 3' hydroxyl, similar to ribosomes only synthesizing proteins from N terminus to C terminus |
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Enzyme that synthesizes RNA? Does it have the same limitation? |
RNA polymerase Yes, RNA can only be extended from 3' |
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The special name for the bond created by dehydration reactions in synthesizing nucleic acids? |
phosphodiester bond |
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Should be able to draw dehydration synthesis for Nucleic Acids |
Look it up |
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Explain the differences in nitrogenous base in nucleic acids. |
If its DNA then you can have a nitrogenous base of Adenine, Guanine, Cytosine, and Thymine and the rest of the structure will stay the same but the base will change to create your GCAT nucleotides. If it is RNA then you will have the same three option of GCA but instead of Thymine you have Uracil. |
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What is a purine and a pyrimidine? |
Purines are the bigger bases, the A and G Pyrimidines are the single bases, UTC |
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What is the difference between the pentose sugars? |
Deoxyribose (in DNA) is had no hydroxyl group off the 2' end so you can think de- means without something, de- hydroxyl group
Ribose (in RNA) has a hydroxyl off the 2' end |
