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

Biology & Microbiology

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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 microscopy

b. phase-contrast microscopy c. bright field microscopy d. scanning electron microscopy e. fluorescence microscopy

Biology & Microbiology

Which of the following is NOT a single gene

trait?

a. cleft chin b. attached earlobes c. dimples d. red hair e. brown skin

Biology & Microbiology

Alternative RNA processing generates different mRNAs that can direct the synthesis of different polypeptides

Indicate whether the statement is true or false

Biology & Microbiology

To obtain large, flat cookies, one should use more fat in a recipe

Indicate whether the statement is true or false

Biology & Microbiology