Which species causes the waterborne disease giardiasis?

a. euglenoids
b. trypanosomes
c. diplomonads
d. parabasalids
e. any anaerobic protozoans


c

Biology & Microbiology

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Which of the following polymerases functions in translesion synthesis and is considered error-prone because it lacks the 3'-5' exonuclease activity used for proofreading?

A. DNA Pol I B. DNA Pol II C. DNA Pol III D. DNA Pol IV E. None of these choices is correct.

Biology & Microbiology

Which of these can found in oak wood but not in pine wood?  

A.  secondary xylem B.  secondary phloem C.  vessel members D.  tracheids E.  ray cells

Biology & Microbiology

Today, almost all cheese is made with ____ chymosin produced by transgenic____

a. pig; yeast b. bacterial; yeast c. calf; yeast d. sheep; bacteria e. bacterial; calf

Biology & Microbiology

The nucleus of a eukaryotic cell is separated from the cytoplasm by the

1.plasma membrane. 2.cell wall. 3.endoplasmic reticulum. 4.ribosomes. 5.nuclear envelope.

Biology & Microbiology