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TLS Online TPP Program

#Question id: 4345

For a repressible operon to be transcribed, which of the following conditions must occur?

#Unit 3. Fundamental Processes

  1. A corepressor must be present.

  2. RNA polymerase and the active repressor must be present.

  3. RNA polymerase must bind to the promoter, and the repressor must be inactive.

  4. RNA polymerase must not occupy the promoter, and the repressor must be inactive.

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TLS Online TPP Program

#Question id: 2282

#Unit 2. Cellular Organization

Which of the following organelles is found in plant cells but not in animal cells?
TLS Online TPP Program

#Question id: 28658

#Unit 2. Cellular Organization

Which of the following subunits of cohesin interact with the ATPase domains, which together form a cohesin ring structure?
TLS Online TPP Program

#Question id: 28070

#Unit 6. System Physiology – Plant

Water splitting/ oxygen evolution is initiated by presence of 
a. P680*
b. P680
c. P680+
TLS Online TPP Program

#Question id: 12701

#Unit 7. System Physiology – Animal

In chronic respiratory acidosis with partial renal compensation, you would expect to find the following changes, compared to normal:___ urinary excretion of NH4+; ______ plasma HCO3− concentration; and _____ urine pH.
TLS Online TPP Program

#Question id: 2796

#Unit 2. Cellular Organization

What type of protein domain/s do you predict allows the histone deacetylase to interact with the nucleosomes