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TLS Online TPP Program

#Question id: 12596

Which of the following best describes the consequences of White-band disease in Caribbean coral reefs? 

#Unit 10. Ecological Principles
  1. Staghorn coral has been decimated by the pathogen, and Elkhorn coral has taken its place.
  2. Key habitat for lobsters, snappers, and other reef fishes has improved.
  3. Algal species take the place of the dead coral, and the fish community is dominated by herbivores.
  4. Algal species take over and the overall reef diversity increases due to increases in primary productivity.
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TLS Online TPP Program

#Question id: 12580

#Unit 10. Ecological Principles

When levels of CO2 are experimentally increased, C3 plants generally respond with a greater increase in productivity than C4 plants. This is because
TLS Online TPP Program

#Question id: 10666

#Unit 10. Ecological Principles

In a experimental invertebrate population the birth rate is 1200 per 1000 and death rate is 300 per 1000 per generation. Initial population size is 10000. What is value of NET reproductive rate?
TLS Online TPP Program

#Question id: 1705

#Unit 4. Cell Communication and Cell Signaling

What is the single best definition of the most common form of antigen recognized by the T-cell receptor (TCR)
TLS Online TPP Program

#Question id: 4337

#Unit 3. Fundamental Processes

Which of the following conditions is most likely to cause the lactose operon to be transcribed?
TLS Online TPP Program

#Question id: 12638

#Unit 6. System Physiology – Plant

strigolactone biosynthesis takes place , find the correct sequence of these signal transduction pathways;
a) D14* hydrolyses strigolactone and releases the products of hydrolysis. 
b) D14 disengages from the SCFMAX2 complex and returns to its original conformation, allowing it to respond to fresh strigolactone signal.
c) D14* interacts with the F-box protein MAX2 and the other partners of the SCFMAX2 ubiquitin ligase complex.
d) The α-/β-fold hydrolase D14 binds and reacts with strigolactone, changing its conformation to the active form, D14*
e) Target protein(s) are recognized by the D14*–SCFMAX2 complex and are ubiquitinated