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5 Cards in this Set
- Front
- Back
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What is DNA? |
Made of nucleotides 2 strands Bases= adenine,thymine Guanine,cytosine. Sugar= Deoxyribose |
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What is RNA? |
Made of nucleotides Only one strand Bases= Cytosine,guanine Adenine,uracil Sugar= Ribose sugar |
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What is a polynucleotide? |
Mononucleotides joined together |
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What is DNA semi conservative replication? |
DNA helicase spilts hydrogen bonds unzips them to for two single strands Nucleotides join to complimentary bases by DNA polymerase Form hydrogen bonds between new and old strand Two new DNA molecules both containing one old and one new strand |
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What is Meselson and stahls experiment evidence on semi conservative replication? |
Heavy and light nitrogen in separate test tubes Spun in a centrifuge Heavy= bottom of test tube Light= top of the test tube Heavy bacteria replicated in light nitrogen Spun again Settled in the middle showing it had one of each strand |
