Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 2450
TLS Online TPP Program

#Question id: 2475

What is a microtubule protofilament?

#Unit 2. Cellular Organization

  1. A microtubule protofilament is a head-to-tail assembly of tubulin dimers. Fourteen such structures compose the cylindrical wall of the microtubule.

  2. A microtubule protofilament is a head-to-tail assembly of actin dimers. Thirteen such structures compose the cylindrical wall of the microtubule.

  3. A microtubule protofilament is a head-to-tail assembly of tubulin dimers. Thirteen such structures compose the cylindrical wall of the microtubule.

  4. A microtubule protofilament is a head-to-tail assembly of actin dimers. Ten such structures compose the cylindrical wall of the microtubule.

More Questions
TLS Online TPP Program

#Question id: 900

#Unit 1. Molecules and their Interaction Relevant to Biology

targeted by the cell for degradation. The Tm of a protein is temperature at which it
TLS Online TPP Program

#Question id: 28657

#Unit 2. Cellular Organization

Cohesins are composed of which of the following subunits?
TLS Online TPP Program

#Question id: 2308

#Unit 2. Cellular Organization

In what way are the Archaea more similar to the Eukarya than to the Bacteria?
TLS Online TPP Program

#Question id: 1755

#Unit 4. Cell Communication and Cell Signaling

Prior to class switching, B-cells express:
TLS Online TPP Program

#Question id: 2516

#Unit 2. Cellular Organization

Which of the following is essential for treadmilling to occur down the length of an actin filament?