Which organism often grows in dense biofilms and frequently causes nosocomial infections by colonizing medical tubes or devices?
a) Pseudomonas aeruginosa
b) Propionibacterium acnes
c) Mycobacterium ulcerans
d) Streptococcus pyogenes
Ans: a) Pseudomonas aeruginosa
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In which type of microscopy is a beam of electrons used to scan the specimen, followed by the conversion of the
excited electrons to a three-dimensional image?
a. confocal laser scanning microscopyb. phase-contrast microscopy c. bright field microscopy d. scanning electron microscopy e. fluorescence microscopy
Which of the following is NOT a single gene
trait?
a. cleft chin b. attached earlobes c. dimples d. red hair e. brown skin
Alternative RNA processing generates different mRNAs that can direct the synthesis of different polypeptides
Indicate whether the statement is true or false
To obtain large, flat cookies, one should use more fat in a recipe
Indicate whether the statement is true or false