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17 Cards in this Set
- Front
- Back
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heredity
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passing of physical or mental traits from generation to generation
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trait
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a physical or mental characteristic
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gene
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a protein recipe
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what is a protein made of?
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proteins are made of amino acids
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what do proteins do?
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they are the "machinery" of cells - proteins make everything happen in a cell
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what are the building blocks of DNA?
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nucleotides
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what is a polymer?
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a big molecule made up of many small molecules linked together
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what are 2 types of nucleic acids?
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DNA and RNA
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what are the 3 parts of a nucleotide?
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1. sugar
2. phosphate 3. nitrogenous base |
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how are the 4 DNA nucleotides different from one another?
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different nitrogenous bases
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what are two different classes of bases?
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1. pyrimidines
2. purines |
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what is the structure of DNA?
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double helix
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in DNA, C is complementary to ...?
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G
C=cytosine G=guanine |
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what part of the cell is the 'library' of protein recipes?
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nucleus
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what is considered to be a photocopy of one protein recipe?
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RNA
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where are proteins made?
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ribosomes
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what is a chromosome?
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it's one piece of DNA
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