What is the importance of proteins that precisely control when and where cytoskeletal elements polymerize and depolymerize? Make sure to give examples in your explanations
What will be an ideal response?
Answer: Their precise control of filament existence, location, orientation, length, and stability is required for the wide variety of cell structures and activities supported by the three types of cytoskeletal filaments. Examples include catastrophin activity associated with spindle fiber microtubules, microfilament formation of actin filaments by formin in stress fibers and by Arp2/3 in lamellipodia, etc.
You might also like to view...
Some cells have several nuclei per cell. How could such multinucleated cells be explained?
A) The cell underwent repeated cytokinesis but no mitosis. B) The cell underwent repeated mitosis with simultaneous cytokinesis. C) The cell underwent repeated mitosis, but cytokinesis did not occur. D) The cell had multiple S phases before it entered mitosis.
In a male fruit fly, the white-eye gene is carried on the Y chromosome
A. true B. false
A particle that consists of nucleic acids surrounded by protein and requires a host organism to replicate is
A. a bacteria. B. a viroid. C. a plasmid. D. a virus. E. a prion.
The male sage grouse who is “displaying” is likely _____
a. indicating that he are ready to spar with other males b. claiming part of the territory as his own c. attracting a mate in a monogamous union d. attracting a mate in a polygamous union e. indicating that he has won a mate