Exit method used by viruses that does not immediately destroy the host bacterium is

A. lysis.
B. inversion.
C. extrusion.
D. excising.


C

Biology & Microbiology

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Which of the following is FALSE when comparing RNA and DNA?

A. Both contain nucleotides connected by phosphodiester linkages. B. Both contain phosphate groups. C. Both are composed of nucleotides that contain sugars. D. Both are composed of identical nucleotides. E. Both are composed of nucleotides that contain a phosphate group, a pentose sugar, and a nitrogenous base. F. Both have a 5’ end and a 3’ end. G. Both are composed of purines and pyrimidines.

Biology & Microbiology

After the second meiotic division, the number of chromosomes in each daughter cell is ________ that of the original parental cell.

A) half B) double C) the same as D) quadruple

Biology & Microbiology

Most species of Gram-positive bacteria are

a. photoautotrophic. b. photoheterotrophic. c. chemoautotrophic. d. chemoheterotrophic. e. photochemoautotrophic.

Biology & Microbiology

This process involves the use of naturally occurring microbes to break down unwanted or dangerous materials. 

A. biomagnification B. bioremediation C. bioamplification D. bioassimilation

Biology & Microbiology