Which of the following strains of bacteria is least likely to initiate the formation of a biofilm?
A) Klebsiella pneumoniae
B) Enterobacter aerogenes
C) Alcaligenes denitrificans
D) Streptococcus pneumoniae
C) Alcaligenes denitrificans
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The cells wall of bacteria Z contains high concentrations of phospholipids along with proteins and relatively low amounts of lipopolysaccharide. When bacteria Z is gram stained, it will most like be colored?
A. Purple B. Pink C. Blue D. Clear, it does not retain any stain Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about gram staining? How does it relate to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Fossil fuels are primarily the result of
a. animal bones. b. animal wastes. c. decaying plants. d. worn-away rocks
Oncogenes are
a. mutant forms of cell cycle genes b. normal forms of cell cycle genes c. needed for normal cells to metastasize d. required for normal contact inhibition of cells e. not used during cell division
New ____ mutations can often be detected by examining the inheritance of the trait in males
a. mitochondrial b. imprinting c. autosomal dominant d. autosomal recessive e. X-linke