Question

Based on what you know of the relationship between the thick and the thin filaments, what would happen if a disorder existed that caused a person to produce no tropomyosin? based on what you know of the relationship between the thick and the thin filaments, what would happen if a disorder existed that caused a person to produce no tropomyosin? actin will spontaneously fall apart. the muscle tissues would never be able to relax. the muscle would be weaker than normal. the muscle would never contract.

Answer 1

Tropomyosin acts as a regulator between the thin filaments (actin) and thick filaments (myosin). Tropomyosin separates these filaments in the absence of ATP and stimuli (mostly from the dissociation of troponin). If there is a genetic mutation involving the non-existence of tropomyosin, then the muscle tissues will remain contracted and will never relax.