Keratin is an example of a ________ protein

Fill in the blank(s) with correct word


structural

Biology & Microbiology

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A deficiency of which essential element leads to intervenal chlorosis?

a. calcium b. potassium c. magnesium d. sulfur

Biology & Microbiology

Which of the following is false concerning the atom

in the figure? a. The number of protons and the number of electrons are equal. b. It has an atomic mass of 4. c. Electrons are moving around the nucleus. d. It has an atomic number of 2. e. The number of electrons exceeds the number of protons.

Biology & Microbiology

Calcium binding to ________ initiates skeletal muscle contraction

A) actin B) tropomyosin C) myosin D) troponin

Biology & Microbiology

Viral chromosomes exist in a variety of conformations and can be made up of ________

A) RNA only B) DNA only C) DNA, RNA, or protein D) DNA or RNA E) protein- or lipid-coding sequences

Biology & Microbiology