Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 2563
TLS Online TPP Program

#Question id: 2588

Which of the following statement is correct regarding attachment of microtubule to the kinetochore?

#Unit 2. Cellular Organization

  1. Once a kinetochore is attached laterally or terminally to a microtubule, dynein-dynactin associates with the kinetochore to move the duplicated chromosome down the microtubule toward the spindle pole. This movement eventually results in an end-on attachment of the microtubule to one kinetochore.

  2. Once a kinetochore is attached laterally or terminally to a microtubule, kinesin associates with the kinetochore to move the duplicated chromosome down the microtubule toward the spindle pole. This movement eventually results in an end-on attachment of the microtubule to one kinetochore.

  3. Once a kinetochore is attached laterally or terminally to a microtubule, myosin associates with the kinetochore to move the duplicated chromosome down the microtubule toward the spindle pole. This movement eventually results in an end-on attachment of the microtubule to one kinetochore.

  4. Kinesin-13 provides the strongest force pulling the chromosome pair toward the more distant pole. This movement requires simultaneous shortening of the microtubule, which is enhanced by kinetochore-localized dynein-dynactin.

More Questions
TLS Online TPP Program

#Question id: 11793

#Unit 1. Molecules and their Interaction Relevant to Biology

On the proteoglycan the glycosaminoglycan chain can bind to extracellular proteins through
TLS Online TPP Program

#Question id: 11794

#Unit 1. Molecules and their Interaction Relevant to Biology

Glypicans are derivatives of
TLS Online TPP Program

#Question id: 11795

#Unit 1. Molecules and their Interaction Relevant to Biology

_________ residue in a tetrasaccharide linker connects a glycosaminoglycan such as chondroitin 4-sulfate to _______ residue in the core protein. The residue at the reducing end of the linker is joined by its anomeric carbon to the hydroxyl of this residue.
TLS Online TPP Program

#Question id: 11796

#Unit 7. System Physiology – Animal

Which of the following hormones is largely unbound to plasma proteins?
TLS Online TPP Program

#Question id: 11797

#Unit 6. System Physiology – Plant

A living cytoplasmic connection penetrate the walls between sieve tube elements and their companion cells; which are often complex and branched on the companion cell side, known as
TLS Online TPP Program

#Question id: 11798

#Unit 6. System Physiology – Plant

Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;