Thursday, November 18, 2010

DNA REPLICATION MODEL RUBRIC

If you are looking for the post from class on Thursday, Nov. 18 go to the post titled "DNA Structure"

This project will be due on Tuesday, November 23rd.  Depending on the grade you want, you can choose the level that you complete.  Please notice that to get credit for each level you must complete the level prior.

If you complete:
Level 1 you may receive up to 50%
Level 2 you may receive up to 70%
Level 3 you may receive up to 82%
Level 4 you may receive up to 92%
Level 5 you may receive up to 100%


DNA Replication Process Rubric for Interactive Model/Poster.                           Name: ______________________
Note: you will receive the grade for the lowest level that is complete.

Level 1: DNA Structure Not Interactive
Nitrogenous bases A,T,G, and C                                                       _____
5’ and 3’ ends labeled                                                                        _____
Antiparallel strands                                                                             _____
Hydrogen bonds (2 vs. 3)                                                                   _____
Purines (2-ring) and Pyrimidines (1-ring)                                         _____
Phosphates labeled                                                                             _____
Correct base-pairings shown                                                             _____   

Level 2: Replication on the Leading Strand. All of the above, plus:
Multiple Origins of Replication/Bubbles                                         _____
Helicase shown                                                                                    _____
     Explained                                                                                         _____
Topoisomerase shown                                                                        _____
     Explained                                                                                         _____   
Single-strand binding proteins shown                                              _____
     Explained                                                                                         _____
5’ and 3’ end labeled                                                                          _____
Replication on the Leading strand
     Leading strand labeled                                                                  _____   
     5’ and 3’ ends labeled on old and new                                       _____
     DNA polymerase III shown                                                         _____
          Explained                                                                                    _____
     Primer shown at start                                                                     _____
     Next incoming nucleoside triphosphate shown                        _____
     DNA polymerase I shown                                                             _____
          Explained                                                                                    _____

Level 3: Replication on the Lagging Strand. All of the above, plus:
Shows a specific DNA sequence                                                       _____
Replication on the Lagging strand  
     Lagging strand labeled                                                                  _____
     5’ and 3’ ends labeled on old and new                                       _____
     Okazaki fragments shown                                                            _____
          Explained                                                                                    _____
     Primers shown                                                                                _____
          Explained
     Ligase shown                                                                                   _____
          Explained                                                                                    _____
     DNA polymerase I shown                                                             _____
          Explained                                                                                    _____
 Next incoming nucleoside triphosphate shown                            _____

Explanation of where energy comes from to create growing strand         _____
Explanation of why replication on the lagging strand is discontinuous    _____

Level 4: Interactive! Leading Strand. All of the above, plus:
Model can be used to show how replication occurs on the leading strand.  Must include accurate application of:
New nucleotides arrive as triphosphates that lose two phosphates before they can bond                    _____
Attachment to growing DNA strand             _____
DNA polymerase III          _____
Primer            _____

Level 5: Interactive! Lagging Strand. All of the above, plus:
Model can be used to show how replication occurs on the lagging strand.  Must include accurate application of:
New nucleotides arrive as triphosphates that lose two phosphates before they can bond       _____
DNA polymerase III         _____
Primers                  _____
DNA polymerase I           _____
Ligase                     _____
Okazaki Fragment         _____

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