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5 Cards in this Set
- Front
- Back
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DNA
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deoxyribonucleic acid- comprises a double strand of nucleotides linked together. the DNA molecule takes on a twisted, double helix shape.
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RNA
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ribonucleic acid- comprises a single strand of nucleotieds linked together. basically half of a DNA molecule.
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Purines
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Adenine (A) and Guanine (G)- these are the BIGGER of the two types.
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Pyrimidines
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Cytosine (C), Thymine (T) (only in DNA), and Uracil (U) (only in RNA)- these are the smaller of the two groups.
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Nucleotides
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the building blocks of DNA. their precise sequence in a DNA molecule provides the genetic instructions for the organism to which it governs. accidental changes in nucleotide sequeances are a cause of mutations, usually harming the organism, but occasionally providing benefits.
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