Which myosin isoform is found in fast-twitch muscle?
A)perinatal
B)extraoccular
C)type I
D)type IIb

Question

Quizplus · Accepted Answer

Type IIb myosin isoform is found in fast-twitch muscle fibers, also known as type II fibers. Type IIb fibers have a high capacity for anaerobic metabolism and are utilized for activities that require short bursts of powerful contractions, such as sprinting and weightlifting. The other choices, perinatal, extraocular, and type I myosin isoforms, are not typically found in fast-twitch muscle fibers.

Which Myosin Isoform Is Found in Fast-Twitch Muscle