The selection gradient measures the strength of directional selection acting on a quantitative trait.

TLS Online TPP Program

#Id: 7995

#Unit 10. Ecological Principles

The habitat of an organism is the place, or physical setting, in which it lives.

TLS Online TPP Program

#Id: 5550

#Unit 7. System Physiology – Animal

The second half of the distal tubule and the subsequent cortical collecting tubule have two distinct cell types:  principal cells and intercalated cells

TLS Online TPP Program

#Id: 7532

#Unit 6. System Physiology – Plant

According to the current hypothesis, the gradient in phototropin phosphorylation induces the movement of auxin to the shaded side of the coleoptile. Once the auxin reaches the shaded side of the tip, it is transported basipetally to the elongation zone, where it stimulates cell elongation. The acceleration of growth on the shaded side and the slowing of growth on the illuminated side (differential growth) give rise to the curvature toward light.

TLS Online TPP Program

#Id: 8179

#Unit 2. Cellular Organization

Peroxisomes contain oxidative enzymes: catalase and urate oxidase.

TLS Online TPP Program

#Id: 4841

#Unit 13. Methods in Biology

A type II error is also known as false negative (where a real hit was rejected by the test and is observed as a miss), in an experiment checking for a condition with a final outcome of true or false.