Mismatches between the strands of DNA are one of the major targets for excision repair systems. Mismatch repair (MMR) is accomplished by scrutinizing DNA for apposed bases that do not pair properly

TLS Online TPP Program

#Id: 2573

#Unit 7. System Physiology – Animal

Paracellular Pathway

Water and solutes can be transported between the cells by moving across the tight junctions and intercellular spaces.

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#Id: 1543

#Unit 2. Cellular Organization

Stathmin decreases the effective concentration of tubulin subunits that are available for polymerization (an action analogous to the drug colchicine) and enhances that a growing microtubule will switch to the shrinking state.

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#Id: 3051

#Unit 10. Ecological Principles

The rate of extinction is low at the time of first colonization and immigration rate is highest

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#Id: 4774

#Unit 5. Developmental Biology

At the 4-cell stage, the EMS cell requires a signal from its neighbor (and sister cell), the P2 blastomere.

TLS Online TPP Program

#Id: 8452

#Unit 1. Molecules and their Interaction Relevant to Biology

If the α helix lies parallel to the direction of the major groove, the straight α helix can contact 4–6 bp before the bases curve out of the plane of the amino acids in the α helix.