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TLS Online TPP Program

#Question id: 10249

A niche is

#10. Ecological Principles
  1. Determined by all the factors that affect a species.
  2. A species’ carrying capacity
  3. The ecosystem where a species is found
  4. A territory occupied by a species
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TLS Online TPP Program

#Question id: 11333

#10. Ecological Principles

Small geographic areas with high concentrations of endemic species and a large number of endangered and threatened species are known as
TLS Online TPP Program

#Question id: 4152

#3. Fundamental Processes

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.
TLS Online TPP Program

#Question id: 15562

#12. Applied Biology

Deletion of which gene not only was accompanied by the abolition of antibiotic formation but also severely impaired growth on agar media.
TLS Online TPP Program

#Question id: 19044

#13. Methods in Biology

Which of the following techniques would be most useful to identify as well as quantify the presence of a known impurity in a drug substance? 
TLS Online TPP Program

#Question id: 5548

#5. Developmental Biology

Vertebrate lungs are derived from