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17 Cards in this Set
- Front
- Back
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What elements are in DNA?
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Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus
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What 4 nucleotides make up DNA? What are their pairs?
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Adenine and thymine, cytosine and guanine
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What 3 parts make up a nucleotide?
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sugar/deoxyribose, nitrogen, phosphate
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What parts make up the backbone?
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Sugar and phosphate
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What did Watson and Crick do? When?
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1953-discovered the double helix
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What type of bonds hold together the nucleotides and hold the base pairs together?
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hydrogen
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What do the bases attach to in the backbone?
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sugar
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How many bonds are between A and T? How about C and G?
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5
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What did Avery do?
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Discovered DNA carries genetics instead of proteins
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What did Chargoff do?
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Thymine was linked to Adenine and Guanine to Cytosine
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What did Franklin do?
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Recognized A and B forms of DNA and that phosphate had to be on the outside
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What did Wilkins do?
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Worked on atomic bomb and checked the double-helix to make sure it worked
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What did Watson and Crick do? When?
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1953-presented the idea of the double helix
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Amount of DNA per diploid cell?
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6.4 x 10^9 base pairs (bp)
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how far away are base pairs?
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3.4 A
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An A (angstrom) is equal to how many nanometers?
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0.1 nm
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What is the total length of the double helix?
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(6.4x10^9 bp)(3.4 A/bp)(.1 nm/A)=2.176(1m/1x10^9 nm)
2.176 |
