Practice Questions

TLS Online TPP Program

#Question id: 33152

Which of the following process prevents the opening of the cohesion ring, thereby locking the cohesin ring around the sister chromatids?

#Unit 2. Cellular Organization

Proteolytic cleavage of sites in the disordered region of scc1
Phosphorylation of cohesins by plk1 and aurora B kinase
Acetylation of the ATPase domain of smc3
Shugoshin proteins begin recruiting the protein phosphatase 2A (PP2A) to centromeric regions

More Questions

#Question id: 4332

#Unit 3. Fundamental Processes

Which of the following is not true of a codon?

#Question id: 4333

#Unit 3. Fundamental Processes

The anticodon of a particular tRNA molecule is

#Question id: 4334

#Unit 3. Fundamental Processes

Which of the following is not true of RNA processing?

#Question id: 4335

#Unit 3. Fundamental Processes

Which of the following mutations would be most likely to have a harmful effect on an organism?

#Question id: 4336

#Unit 3. Fundamental Processes

Which of the following processes would result from a mutation that deactivates a regulatory gene of a repressible operon in an E. coli cell?

#Question id: 4337

#Unit 3. Fundamental Processes

Which of the following conditions is most likely to cause the lactose operon to be transcribed?