Medical Quiz
Muscle Anatomy Quiz

According to the sliding filament theory, how does muscle contraction occur?

A. Both thick and thin filaments shorten as the muscle contracts.

B. Myosin heads attach and detach from thin filaments, causing thin filaments to shorten.

C. A bands bunch up and shorten as myosin heads attach to thin filaments.

D. Myosin cross bridges pull thin filaments, causing them to slide.

Select your answer:
A  B  C  D  E 


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Other quiz: Biology for Engineers

Crossing or breeding experiment that deals with two alternate forms a single character is called

A. Monohybrid cross

B. Dihybrid cross

C. Test crosss

D. none