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Question

Which of the following statements are true about myosin?
I. Myosin is made of meromyosin.
II. Each meromyosin has two parts - HMM and LMM
III. The tail is the light meromyosin i.e. LMM
IV. The head with short arm is heavy meromyosin i.e. HMM

A
III
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B
I and II
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C
I, II, III and IV
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D
IV
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Solution

The correct option is C I, II, III and IV
The myosin molecule is made up of meromyosin. Each meromyosin has two parts,
i. a globular head with a short arm, known as the heavy meromyosin (HMM)
ii. a tail or the light meromyosin (LMM).

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