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10 Cards in this Set
- Front
- Back
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What is the basic difference in structure between a purine and pyrimidine?
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Purine has a hexagonal structure with a pentagonal structure attached (4 Nitrogen).
Pyrimidine has a heaxagonal structure with 2 Nitrogen. |
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What are the purine bases?
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Adenine, Guanine
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What are the Pyrimidine bases?
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Thymine, Cytsosine, Uracil
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Which bases are present in DNA?
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Adenine, Thymine, Cystosine, Guanine
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Which base of DNA is replaced in RNA?
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Uracil replaces Thymine
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DNA is composed of a repeating group of.....?
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Nucleotides
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Each Nucleotide is composed of.....?
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Nucleosides and a phosphate group
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Each Nucleoside is composed of .......?
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A sugar and a nucleic acid base.
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What is the chemical reaction that occurs between the OH group of Carbon 1 & the NG Group of of the nitrogen base?
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Condensation
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What are the 2 sugars which make up RNA and DNA?`
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Deoxyribose and ribose
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