In which of the following regions in the host bacterium are you most likely to find Bdellovibrio?
A. The space between the cell wall and plasma membrane
B. The cell nucleus
C. The nucleoid
D. The cytoplasm
Answer: A
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Genetic recombination by conjugation was discovered by:
a. Francois Jacob. b. Elie L. Wollman. c. Gregor Mendel. d. Francois Jacob and Elie L. Wollman e. Elie L. Wollman and Gregor Mendel
Extracellular fluid (ECF) consists mostly of ________
a. blood and lymph b. cerebrospinal fluid c. mucus d. interstitial fluid and plasma
The methanogenic archaeans are ____ that pull electrons from ____.
A. chemoautotrophs; oxygen B. chemoheterotrophs; carbon dioxide C. chemoautotrophs; water D. chemoheterotrophs; methane E. chemoautotrophs; hydrogen gas
Trait SpeciesABCDE100100210101310101411100511110611110The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which trait is least informative of phylogenetic relationships within the group?
A. A B. B C. C D. D E. E