Practice Questions

TLS Online TPP Program

#Question id: 18746

Which of the following is a characteristic of Taq polymerase?

#Unit 13. Methods in Biology

It is an RNA polymerase
It is heat stable
It is obtained from thermophilic bacterium and can be grown in the laboratory below a temperature of 75 degrees
It is used in cellular synthesis processes and the optimum temperature is at least 90 degrees

More Questions

#Question id: 1435

#Unit 4. Cell Communication and Cell Signaling

Direct-acting carcinogens are those that:

#Question id: 1436

#Unit 4. Cell Communication and Cell Signaling

Telomerase:

#Question id: 1437

#Unit 4. Cell Communication and Cell Signaling

Exposure to benzo(a)pyrene is most frequently associated with which type of cancer?

#Question id: 1438

#Unit 4. Cell Communication and Cell Signaling

The first line of defense against point mutations is:

#Question id: 1439

#Unit 4. Cell Communication and Cell Signaling

Indirect-acting carcinogens are those that:

#Question id: 1440

#Unit 4. Cell Communication and Cell Signaling

Which of the following is NOT evidence that smoking causes lung cancer?