Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 3573
TLS Online TPP Program

#Question id: 3786

E. coli cells grown on 15N medium are transferred to 14N medium and allowed to grow for two more generations (two rounds of DNA replication). DNA extracted from these cells is centrifuged. What density distribution of DNA would you expect in this experiment?

#Unit 3. Fundamental Processes

  1. one high-density and one low-density band

  2. one intermediate-density band

  3. one high-density and one intermediate-density band

  4. one low-density and one intermediate-density band

More Questions
TLS Online TPP Program

#Question id: 18736

#Unit 13. Methods in Biology

Ligation enzymes are used for ligating newly synthesized okazaki fragments. What holds true for okazaki fragments?
TLS Online TPP Program

#Question id: 5568

#Unit 5. Developmental Biology

Asexual reproduction results in offspring that are genetically identical to their parent. What type of cell process occurs to generate this type of offspring?
TLS Online TPP Program

#Question id: 1557

#Unit 4. Cell Communication and Cell Signaling

which one of these antibody can cross placenta?
TLS Online TPP Program

#Question id: 31403

#Unit 6. System Physiology – Plant
TLS Online TPP Program

#Question id: 32237

#Unit 2. Cellular Organization

In which compartment does the KDEL receptor bind its ligands more tightly?