A more potent mutagen translates into a greater number of revertant colonies.

TLS Online TPP Program

#Id: 8968

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 3414

#Unit 6. System Physiology – Plant

STN7 The kinase is activated when plastoquinone, one of the electron carriers between PSI and PSII, accumulates in the reduced state.

TLS Online TPP Program

#Id: 7817

#Unit 10. Ecological Principles

Polar bears and seals have multiple layers of fat, plumage, or fur to keep warm.

Arctic birds often have thick layers of feathers.

TLS Online TPP Program

#Id: 7248

#Unit 5. Developmental Biology

T2 cells also express BAFF-R, the receptor for the B-cell survival factor BAFF, whose expression is dependent on signals received through the BCR. 

As B cells differentiate from the transitional T2 state to full maturity, they raise their levels of mIgD still further, while reducing the expression of mIgM. They also cease to express CD24 and CD93.

TLS Online TPP Program

#Id: 9208

#Unit 11. Evolution and Behavior

CAUSES OF GENETIC DRIFT

Genetic drift in a small population over multiple generations can significantly affect the composition of a population’s gene pool.