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TLS Online TPP Program

#Id: 3200

Base excision repair (BER) systems directly remove the damaged base and replace it in DNA.

#Unit 3. Fundamental Processes #DNA damage and repair mechanisms #Part B Pointers
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TLS Online TPP Program

#Id: 10438

#Unit 4. Cell Communication and Cell Signaling

P-450 enzymes, modify benzo(a)pyrene in a series of reactions, producing 7,8-diol-9,10-epoxide, a highly potent mutagenic species
TLS Online TPP Program

#Id: 3019

#Unit 3. Fundamental Processes

The priming end can be provided by an RNA primer, a nick in DNA, or a priming protein.
TLS Online TPP Program

#Id: 9652

#Unit 4. Cell Communication and Cell Signaling
TLS Online TPP Program

#Id: 2290

#Unit 3. Fundamental Processes

RNA polymerase holoenzyme binds DNA loosely at first
a. Binds at promoter initially
b. Scans along the DNA until it finds one
TLS Online TPP Program

#Id: 3011

#Unit 3. Fundamental Processes

The E. coli SSB is a tetramer; eukaryotic SSB (also known as RPA) is a trimer.