Myosin is a contractile protein found in muscles that is composed of three pairs of subunits, two heavy chains, and two pairs of two different types of light chains, for a total of six subunits. Myosin contains what level(s) of protein structure?

A) primary only
B) primary and secondary only
C) primary, secondary, and tertiary only
D) primary, secondary, tertiary, and quaternary


Answer: D

Biology & Microbiology

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Discuss three findings that support the theory of primary endosymbiosis

What will be an ideal response?

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Which of the following points is NOT a common ancestor of both Animals and Ministerids?

A. 6 B. 1 C. 4 D. 5 E. 1 and 6

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Assume you inoculated 100 cells, with a generation time of 20 minutes, into 100 ml of nutrient broth. You then inoculated 100 cells of the same species into 200 ml of nutrient broth. After incubation for 4 hours, you can reasonably expect to have

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