These microbes do not have an aerobic metabolism, but they can detoxify oxygen enough to live in its presence:
a) microaerophiles
b) aerotolerant anaerobes
c) facultative anaerobes
d) obligate anaerobes
Answer: b) aerotolerant anaerobes
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Some microbial proteins are spliced after translation in a reaction that results in removal of one or more internal intervening sequences called exteins.
Answer the following statement true (T) or false (F)
Oswald Avery found that DNA was necessary and sufficient for bacterial transformation. Which of the following experimental results support this statement (select all that apply)?
A. Removal of DNA from virulent Streptococcus pneumoniae cell extracts eliminated transformation. B. Removal of RNA from virulent Streptococcus pneumoniae cell extracts eliminated transformation. C. Protein alone will cause bacterial transformation to occur. D. DNA alone will cause bacterial transformation to occur.
Males that tend to be taller than average and
show mild mental impairment may have a. XXY chromosomes. b. XYY chromosomes. c. Turner syndrome. d. Down syndrome. e. none of these.
Identification of ribosomal proteins involves two-dimensional gel electrophoresis, which separates the proteins on the basis of __________
A) mass B) folded shape C) charge D) mass and charge E) mass, charge, and folded shape