Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 9617
TLS Online TPP Program

#Question id: 12835

Following statements are regarding to the surveillance mechanism. Which of the following statement is incorrect?

#Unit 2. Cellular Organization
  1. DNA damage leads to the activation of p21, a transcription factor that induces the expression of the gene encoding the CDK inhibitor p53.
  2. When the DNA damage occurs during S phase or in G2, Cdc25C inhibition by Chk1/2 results in the inhibition of mitotic CDKs and hence arrest in G2.
  3. Cells sense DNA replication stress that results in stalling or slowing of replication forks. Such stress triggers activation of the ATR-Chk1 checkpoint pathway and results in downregulation of S phase CDK activity and prevents the firing of late-replicating origins.
  4. ATM halts cell cycle progression by Chk2-mediated inhibition of Cdc25, thus preventing activation of CDKs. This inhibition can occur in G1 or G2.
More Questions
TLS Online TPP Program

#Question id: 19074

#Unit 6. System Physiology – Plant

ETI causes__
TLS Online TPP Program

#Question id: 33355

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statement stands incorrect
TLS Online TPP Program

#Question id: 15449

#Unit 4. Cell Communication and Cell Signaling

Class switch recombination of B-cell that is generated upon recognition of protein antigens and requires the participation of_____
TLS Online TPP Program

#Question id: 4395

#Unit 3. Fundamental Processes

Which of the following chemicals would be the most appropriate for the 5’ labeling of a DNA strand with a radioactive phosphate?
TLS Online TPP Program

#Question id: 10591

#Unit 10. Ecological Principles

The following figure shows distribution pattern of species. 


Based on the above, which of the following distribution correct?