Polarized cells are characterized by

A) random orientation within a tissue.
B) a polar flagellum.
C) random orientation within an organ.
D) distinct apical and basolateral sides.
E) both choices B and D


D) distinct apical and basolateral sides.

Biology & Microbiology

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Which of the following organisms best describes a catalase-negative, gram-positive coccus that is hemolytic on sheep blood agar, and bacitracin positive?

a. Streptococcus pyogenes b. Streptococcus pneumoniae c. Staphylococcus epidermidis d. Micrococcaceae spp.

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Answer the following statement true (T) or false (F)

Linkage between a gene of interest and a DNA marker is being studied. A mating results in 19 parental and 1 recombinant offspring. The results of this mating are sufficient to conclude with confidence that the gene of interest and the DNA marker are linked.

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The most costly health problem in the United States is

a. phlebitis. b. hypertension. c. heart failure. d. atherosclerosis. e. a stroke.

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What is synthesis of RNA from a DNA template called?

A) Transformation B) Reverse transcription C) Transcription D) Translation E) None of these choices

Biology & Microbiology