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17 Cards in this Set
- Front
- Back
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There are how many bases in DNA |
4 |
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Bases in DNA |
-Adenine -Thymine -Guanine -Cytosine |
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Types of bases |
-Purine -Pyrimidine |
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Purines |
-Adenine -Guanine |
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Pyrimidine |
-Guanine -Cytosine |
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A pyrimidine or purine base covalently bonded to a sugar |
Nucleoside |
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Composed of a base sugar and phosphate covalently bonded together |
Nucleotides |
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In dna the nucleotides are covalently joined together by - - - - - to form a repetitive sugar phosphate chain which is the backbone which the bases are attached |
3'5' phosphodiester bond |
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Is the sequence of a c g and t along the dna molecule which carries the genetic information |
DNA Sequence |
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The two dna chains are held together by--- between bases |
Hydrogen Bonds |
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Two types of ring structures in the bases |
-Purine -Pyrimidine |
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Two-joined carbon Nitrogen ring basws |
Purine |
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Single carbon Nitrogen ring bases |
Pyrimidine |
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Polymer chain of ribonucleotides the covalent structure is very similar to that for dna |
RNA |
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Rna molecules are largely single-stranded but there are regions of self complementary where the rnase chain forms internal double-stranded regions |
RNA Secondary Structure |
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Replication starts at a single origin |
Replication forks |
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What synthesizes rna primer |
Primase |
