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23 Cards in this Set
- Front
- Back
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What is DNA's shape geometrically?
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Double Helix
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What unites make up the DNA molecules?
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Nucleotides
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What are the 3 parts of these units?
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Deoxyribose, phosphate, and nitrogen base
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To which part is the nitrogen base attached?
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Deoxyribose
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Which 2 parts form the outher supports of the DNA molecule?
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Deoxyribose and Phosphate
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What are the 4 nitrogen bases of DNA?
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2 paired nitrogen bases
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In DNA, what forms the rungs of the molecule?
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Thymine
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In DNA, what bonds to Adenine, Thymine, Guanine, and Cytosine?
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Thymine, Adenine, Cytosine, and Guanine
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In an analysis of a DNA molecule that is 1000 runs (base pairs) there were found to be 460 adenines. How many thymines would there be? How many Guanines? How many cytosines?
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460, 540, 540
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What is the process called where DNA unzips and makes a copy of itself>
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Replication
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What is the process called where DNA is copied by messenger RNA?
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Transcription
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Where does transcription occur?
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Nucleus
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What happens to the mRNA after it copies DNA?
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Move to the ribosome
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What is the process called when transfer RNA decodes the mRNA message? Where does this occur?
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Ribosome
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DNA
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A-T-G-G-A-C-C-G-T-T-A-G-C-A-A-A-G-T-C-G-A
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mRNA
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U-A-C-C-U-G-G-C-A-A-U-C-G-U-U-U-C-A-G-C-U
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tRNA
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A-U-G-G-A-C-C-G-U-U-A-G-C-A-A-A-G-U-C-G-A
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The three bases on the mRNA molecule is called a?
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Codon
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Three bases on the tRNA molecule are called?
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Anticodon
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What replaces Thymine to bond with Adenine in RNA?
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Uracil
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What are the building blocks of protein called? WHich type of bons joins amino acids together?
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Amino acids, Ceptide
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Which two scientists discovered DNA's structure?
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James Watson and Francis Crick
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What are the two main functions of DNA?
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Stores and transmits genetic information that tells cells which proteins to make, passes genetic information to daughter cells when cells divide.
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