Author Question: The region of the sarcomere that always contains thin filaments is the A) Z line. B) M line. C) H ... (Read 85 times)

plus1 · **on:** Feb 28, 2019

The region of the sarcomere that always contains thin filaments is the
A) Z line.
B) M line.
C) H band.
D) A band.
E) I band.

Question 2

Each thin filament consists of
A) two actin protein strands coiled helically around each other.
B) chains of myosin molecules.
C) six molecules coiled into a helical structure.
D) a rod-shaped structure with heads projecting from each end.
E) a double strand of myosin molecules.