When the potential reaches a threshold voltage of about −40 millivolts, the L-type calcium channels become “activated,” causing the action potential.

TLS Online TPP Program

#Id: 9519

#Unit 6. System Physiology – Plant

Many different types of bacterial Avr effectors delivered by type III secretion have been identified to be enzymes such as phosphatases, proteases, phosphoserine lyases, or E3 ubiquitin ligases that attenuate host defense signaling.

TLS Online TPP Program

#Id: 5369

#Unit 10. Ecological Principles

Quadrats - A square frame often, but not always, measuring 50 × 50 cm. 

TLS Online TPP Program

#Id: 6665

#Unit 3. Fundamental Processes

There are three type of Splicing Machinery

TLS Online TPP Program

#Id: 7735

#Unit 1. Molecules and their Interaction Relevant to Biology

The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

TLS Online TPP Program

#Id: 650

#Unit 3. Fundamental Processes

Two major products of UV absorption by pyrimidines (thymine and cytosine) are pyrimidine hydrates and pyrimidine dimers.