Which of the following represents the order of increasingly higher levels of organization of chromatin?

A) nucleosome, 30-nm chromatin fiber, looped domain
B) looped domain, 30-nm chromatin fiber, nucleosome
C) nucleosome, looped domain, 30-nm chromatin fiber
D) 30-nm chromatin fiber, nucleosome, looped domain


A

Biology & Microbiology

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Hexokinase is an enzyme that binds specifically to glucose and converts it into glucose 6-phosphate. The activity of hexokinase is suppressed by glucose 6-phosphate, which binds to hexokinase at a location that is distinct from the active site. This is an example of

A. feedback inhibition. B. competitive inhibition. C. cofactor binding. D. allosteric activation.

Biology & Microbiology

An absorption spectrum is a graph that shows ________

a. absorption of different wavelengths of light by a pigment b. photosynthetic activity at various wavelengths of light c. wavelengths of visible light only d. wavelengths of various forms of radiation

Biology & Microbiology

Which disease is caused by the inhalation of fungal spores?

a. Ringworm b. Athlete's foot c. Histoplasmosis d. Ergotism e. Chestnut blight

Biology & Microbiology

The weak chemical attraction between water molecules are ______ bonds, while the stronger chemical bonds between the atoms of each water molecule are _____ bonds.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology