What is a defining feature of a eukaryotic cell?
A. Cell wall surrounding the cell
B. Plasma membrane external to the cell wall
C. Internal membranes surrounding organelles
D. Ribosomes in the cytoplasm
E. Large vacuole for storage
Answer: C
Biology & Microbiology
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In an F+ × F- conjugation, the donor is the ________ strain.
A. F- B. F+ C. both F+ and F- (It is a reciprocal exchange) D. neither F+ nor F- (There is no exchange)
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Which of the following is the major source of the pathogens that cause nosocomial infections?
A) Escherichia coli B) Enterococcus spp. C) Staphylococcus aureus D) Streptococcus pyogenes
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The unique sequence of monomer subunits in a protein is the ____ structure of the protein
a. primary b. secondary c. tertiary d. quaternary e. linear
Biology & Microbiology
what does HBV cause?
What will be an ideal response?
Biology & Microbiology