5 Written Questions
5 Matching Questions
- Erwin Chargaff
- Rosalind Franklin and Maurice Wilkins
- Single-Strand Binding Proteins
- James Watson and Francis Crick
- a the two DNA nucleotides run in opposite directions.
- b published structure of DNA. built the double helix model.
- c stabilizes the template DNA so they do not reattach.
- d Bombarded DNA with x-rays to form a picture. determined that DNA was helical, has repeating subunits, and had a sugar-phosphate backbone.
- e discovered that base composition of DNA varies from one species to another. But DNA always has equal amounts of Adenine and Thymine and equal amounts of Guanine and Cytosine.
5 Multiple Choice Questions
- Thymine, Cytocine, Adenine and Guanine
- proofread the DNA. 130 types identified in humans. 1 in 100,000 are mispaired and then corrected. DNA polymerases also double check base pairing.
- worked with protein structure. helped prove that DNA must be the holder of hereditary information.
- works ahead of the helicase to relieve tension on the double helix. It does this by cutting the sugar-phosphate backbone, swiveling it and reattaching it.
- attaches nucleotides to form the new DNA strand.
5 True/False Questions
DNA nucleotides → links sugar phosphate backbone of the Okazaki Fragments together.
Okazaki Fragments → to replicate "backwards", pieces on the lagging strand are made in the 5 prime to 3 prime direction and those pieces are called...
Antiparallel Elongation → the two DNA nucleotides run in opposite directions.
Replication Bubble → one DNA strand is copied to produce 2 identical strands
Purine Bases → have double rings. Adenine and Guanine