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TLS Online TPP Program

#Question id: 9185

Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?

#9. Diversity of Life Forms
  1. cells near the point of infection destroying themselves to prevent the spread of the infection
  2. production of chemicals that kill pathogens
  3. acquiring gene-for-gene recognition that allows specific proteins to interact so that the plant can produce defenses against the pathogen
  4. All of the above are plant defenses against disease.
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TLS Online TPP Program

#Question id: 300

#1. Molecules and their Interaction Relevant to Biology

Hydrogen bonding occurs in molecules when ___________________.
TLS Online TPP Program

#Question id: 11554

#7. System Physiology – Animal

What happens in a cell when adenylyl cyclase is activated?
TLS Online TPP Program

#Question id: 3658

#3. Fundamental Processes

In E. coli, the UvrABC endonuclease removes _____________and other bulky lesions by recognizing the distortion these produce in the double helix.
TLS Online TPP Program

#Question id: 11060

#7. System Physiology – Animal

A healthy, 25-year-old medical student participates in a 10-km charity run for the American Heart Association. Which of the following muscles does the student use (contract) during expiration?
TLS Online TPP Program

#Question id: 353

#1. Molecules and their Interaction Relevant to Biology

Measurements show that the pH of a particular lake is 4.0. What is the hydrogen ion concentration of the lake?