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19 Cards in this Set
- Front
- Back
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This is the hereditary material in all living organisms |
DNA |
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All cells that contain a nucleus contain what? |
The same DNA |
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What is DNA |
A polymer of nucleotides |
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Nucleotides are made up of what |
A phosphate, a dioxyribose sugar, and one of 4 nitrogenous bases |
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Name the 4 nitrogenous bases |
Cytosine , guanine, adenine, thymine |
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Adenine and guanine are what |
Purines (double ring) |
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Cytosine and thymine are what |
Pyrimidines (single ring) |
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Is DNA double or single stranded? |
Double stranded |
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Dna strands are held together by what |
Hydrogen bonds |
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Adenine pairs with what |
Thymine |
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Guanine pairs with what |
Cytosine |
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What does a dna structure look like |
A double helix (twisted ladder) |
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Lysis buffer is used for what |
Break down phospholipid cell membranes |
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What is the active ingredient in lysis buffer |
Detergent |
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Salt is used for what |
Neutralize the charge of DNA |
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Protease is used for what |
Break down proteins that can cut DNA (nucleases and dnases) |
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Rnases are use for what |
Break down rna |
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Cold ethanol is used for what |
Precipitate out the dna |
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DNA has the consistency of what |
Very fine white strands |
