Indicate true (T) and false (F) statements below regarding cytokinesis in animal cells. Your answer would be a four-letter string composed of letters T and F only, e.g. TFFF.
( ) The force for cytokinesis is generated by kinesin motors on microtubule bundles that form the contractile ring.
( ) As the contractile ring constricts, its thickness increases to keep a constant volume.
( ) The midbody forms from bundles of actin and myosin II.
( ) Local activation of Ran GTPase triggers the assembly and contraction of the contractile ring.

Question

Indicate true (T) and false (F) statements below regarding cytokinesis in animal cells. Your answer would be a four-letter string composed of letters T and F only, e.g. TFFF.
( )	The force for cytokinesis is generated by kinesin motors on microtubule bundles that form the contractile ring.
( )	As the contractile ring constricts, its thickness increases to keep a constant volume.
( )	The midbody forms from bundles of actin and myosin II.
( )	Local activation of Ran GTPase triggers the assembly and contraction of the contractile ring.

Quizplus · Accepted Answer

The contractile ring is based on actin and myosin II, constricts in a dynamic fashion, and gradually disassembles. RhoA GTPase helps assemble this structure.

Indicate True (T) and False (F) Statements Below Regarding Cytokinesis