Which of the following stain as either Gram-positive or Gram-negative?
a. Archaea
b. Bacteria
c. Archaea and Bacteria
d. neither Archaea nor Bacteria
e. Methanogens
C
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These biological compounds are non-polar and insoluble in water:
A. proteins B. nucleic acids C. lipids D. carbohydrates
Which of the following is NOT a natural means of DNA recombination?
A) Viral infection B) Transformation in bacteria C) PCR D) Sexual reproduction
The definition of lysogeny is
A) phage DNA is incorporated into host cell DNA. B) lysis of the host cell due to a phage. C) the period during replication when virions are not present. D) when the burst time takes an unusually long time. E) attachment of a phage to a cell.
If a woman is infected with Zika virus during pregnancy, her baby may be infected by the (parenteral/placental/mucous membrane) route.
Fill in the blank(s) with the appropriate word(s).