Practice Questions

TLS Online TPP Program

#Question id: 3692

Which of the following statement is true regarding an enzyme DNA polymerase that catalyzes the elongation of complementary DNA strand?

#Unit 3. Fundamental Processes

DNA polymerase III is a highly processive enzyme.
DNA polymerase III possess 5'-3' polymerase activity required for elongation.
DNA polymerase III possess 3'-5' exonuclease activity important for maintaining fidelity.
All of the above

More Questions

#Question id: 1131

#Unit 4. Cell Communication and Cell Signaling

Which of the following function(s) as an inhibitor of TGFβ signal transduction?

a. R-Smad b. I-Smad c. Co-Smad d. Ski e. SnoN

#Question id: 1132

#Unit 4. Cell Communication and Cell Signaling

Which of the following become(s) active as a kinase when an activation lip residue is phosphorylated?

a. EpoR b. JAK c. STAT d. Ras e. MAPK

#Question id: 1133

#Unit 4. Cell Communication and Cell Signaling

What tertiary structure characterizes all cytokines?

#Question id: 1134

#Unit 4. Cell Communication and Cell Signaling

Arrange the following proteins in the proper order in which they become activated in the MAPK signaling pathway:

a. MAP kinase b. MEK c. Ras d. Raf e. RTK

#Question id: 1135

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a direct substrate of MAP kinase?

a. TCF b. SRF c. SRE d. p90RSK e. CREB

#Question id: 1136

#Unit 4. Cell Communication and Cell Signaling

Which of the following signaling pathways can be activated by activation of receptor tyrosine kinases?

a. phospholipase Cγ b. PI-3 kinase

c. MAP kinase d. none of the above