Practice Questions

TLS Online TPP Program

#Question id: 11102

Pulmonary surfactant

#Unit 7. System Physiology – Animal

keeps the alveoli from collapsing by reducing the surface tension.
inflates the alveoli by increasing the surface tension.
keeps the alveoli from collapsing by increasing the surface tension.
increases the rate of gas exchange across the alveoli by the secretion of phospholipids.

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TLS Online TPP Program

#Question id: 24633

#Unit 2. Cellular Organization

Which of the type of reactions performed in Inserting DNA into a phage head

TLS Online TPP Program

#Question id: 24634

#Unit 2. Cellular Organization

Chromosomal packaging in bacteria maintained by

TLS Online TPP Program

#Question id: 24635

#Unit 2. Cellular Organization

In E.coli topoisomerases I and III is responsible for

TLS Online TPP Program

#Question id: 24636

#Unit 2. Cellular Organization

The degree of supercoiling of bacterial DNA is maintained by regulation of the net activity of topoisomerases,

TLS Online TPP Program

#Question id: 24637

#Unit 2. Cellular Organization

Which of the following topoisomerases can relax both positive and negative supercoils in eukaryotes

TLS Online TPP Program

#Question id: 24638

#Unit 2. Cellular Organization

The type I topoisomerase reaction The ends are ligated by a second nucleophilic attack which can be inhibited by