Plaque is _____ caused by _____
a. an infectious disease; bacterial biofilms
b. a non-infectious disease; inflammation of the gums
c. an infectious disease; non-pathogenic bacteria
d. a non-infectious disease; E. coli
e. an infectious disease; E. coli
ANSWER: a
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Which of the following processes is central to the initiation of transcription?
A) binding of sigma to the promoter region B) formation of a phosphodiester bond in the elongating RNA strand C) binding of DNA polymerase to the promoter region D) formation of a DNA primer
Signal integration and processing in the eye begin in the:
a. choroid b. lens c. vitreous body d. retina e. ciliary body
Major trends in the evolution of animals
include
a. cephalization, the development of a definite head region. b. the development of types of symmetry. c. variation in coelomic cavities. d. segmentation. e. all of these
With which organelle are ribosomes most closely associated?
A. The Golgi complex B. Lysosomes C. Mitochondria D. Smooth endoplasmic reticulum E. Rough endoplasmic reticulum