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17 Cards in this Set

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