Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 3772
TLS Online TPP Program

#Question id: 3985

The binding of CRP (cAMP receptor protein of E. coli) to DNA in the lac operon:

#Unit 3. Fundamental Processes

  1. assists RNA polymerase binding to the lac promoter.

  2. is inhibited by a high level of cAMP.

  3. occurs in the lac repressor region.

  4. occurs only when glucose is present in the growth medium.

More Questions
TLS Online TPP Program

#Question id: 3474

#Unit 11. Evolution and Behavior

 Polygynous mate choice is not correlated with
TLS Online TPP Program

#Question id: 20977

#Unit 12. Applied Biology

Transducers employed in the bulk of enzyme electrodes use which of the following principles?
TLS Online TPP Program

#Question id: 2057

#Unit 4. Cell Communication and Cell Signaling

Lymph nodes and the spleen are the most highly organized secondary lymphoid organs. T-cell and B-cell activity are separated into distinct microenvironments in both. T cells and B cells  are found in
TLS Online TPP Program

#Question id: 31168

#Unit 7. System Physiology – Animal

When the excitable cells are incapable of producing normal action potentials, phenomena known as:
TLS Online TPP Program

#Question id: 12274

#Unit 7. System Physiology – Animal

Before intercourse, a woman irrigates her vagina with a solution that lowers the pH of the vaginal fluid to 4.5. What will be the effect on sperm cells in the vagina?