TLS Online TPP Program

#Question id: 2640


Which of these properties do not agree with trp operon attenuator?

#Unit 2. Cellular Organization
  1. It brings about repression of trp operon

  2. It consists of one stem loop system

  3. It has two codons for tryptophan in sequence

  4. Ribosome stalls at the attenuator

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TLS Online TPP Program

#Question id: 32256

#Unit 2. Cellular Organization

The accumulation of abnormally folded proteins and unassembled subunits in the ER can induce increased expression of ER protein-folding catalysts via:

TLS Online TPP Program

#Question id: 31398

#Unit 4. Cell Communication and Cell Signaling

Termination of the rhodopsin signaling pathway leads to the concentration of cytoplasmic cGMP must be restored to its dark level by the enzyme known as:

TLS Online TPP Program

#Question id: 10223

#Unit 6. System Physiology – Plant

when plastoquinone is accumulates in the reduced state, Reduced plastoquinone accumulates when PSII is being activated more frequently than PSI. What will happen when plastoquinone becomes more oxidized?

TLS Online TPP Program

#Question id: 10631

#Unit 10. Ecological Principles

To estimate the number of foxes m an area, a researcher conducted a mark-recapture survey. In the fast survey, he caught and marked 90 foxes. In his second survey a week later, he caught 120 foxes of which 40 were marked (recaptures). If you are told that the actual number of foxes in this area is 400, which of the following is a plausible explanation for the anomaly in the researcher's data? 

TLS Online TPP Program

#Question id: 29436

#Unit 6. System Physiology – Plant

Which of the following is incorrectly paired 
a. NodA is an N-acyltransferase
b. NodB is a chitin-oligosaccharide deacetylase
c. NodB is a N-acyltransferase
d. NodC is a chitin-oligosaccharide synthase
f. NodC is a chitin-oligosaccharide deacetylase