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DNA Vocabulary

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Term
Definition
Double helix   The twisted ladder shape of DNA molecules  
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Rosalind Franklin   Scientist who discovered the shape of DNA using x-ray technology  
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Cytosine   The nitrogen base that pairs with Guanine  
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DNA   The large nucleic acid found in the nucleus; carries the code of life  
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Watson & Crick   Scientists who created the first model of DNA  
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RNA   The nucleic acid that reads the DNA code & uses the instructions to make proteins  
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Gene   A segment of DNA that codes for a trait  
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Amino acid   The building blocks of proteins  
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Protein   The material used to make cells & tissues; it is also used as enzymes  
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Nitrogen bases   The “rungs” or steps of the ladder which make up DNA; held together with hydrogen bonds  
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Thymine   The nitrogen base that pairs with adenine  
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Trait   A characteristic of an organism as determined by its genes  
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Guanine   The nitrogen base that pairs with cytosine  
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Adenine   The nitrogen base that pairs with thymine in DNA and uracil in RNA  
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Nucleotides   The building blocks of DNA; made up of a sugar, nitrogen base, & phosphate group  
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Deoxyribose   The sugar found in DNA  
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Ribose   The sugar found in RNA  
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Phosphate group   The part of the backbone of DNA that does not have bases attached  
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Complementary base pairs   The opposite strands of DNA as determined by its base pairs  
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Replication   The process of copying the DNA in a cell  
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Uracil   The nitrogen base that pairs with adenine in RNA  
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Hydrogen bonds   Weak bond that holds the nitrogen bases together in DNA  
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Created by: nbiegel
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