Transfer of DNA between bacterial cells by viruses is called (transformation/transduction/conjugation).
Fill in the blank(s) with the appropriate word(s).
transduction
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Human bites and animal bites caused by ________ and _________, respectively, can ultimately lead to an underlying bone infection
a. Eikenella corrodens; Actinomyces spp. b. Pasteurella multocida; Peptostreptococcus spp. c. Prevotella spp.; S. aureus d. E. corrodens; P. multocida
The bacterium Alcaligenes eutrophus naturally produces polyhydroxybutyrate (PHB), a biodegradable thermoplastic. In 1992, Poirier, et al., reported in the journal Science that the two genes responsible for the production of PHB in bacteria had been introduced into the plant Arabidopsis thaliana, and it was demonstrated that the plants produced PHB. What type of vector was likely used to introduce the bacterial genes into the A. thaliana?
A. BAC. B. YAC. C. Ti plasmid. D. viral vector. E. BAC or YAC.
The fovea is the area at the back of the eye where the optic nerve exits.
a. true b. false
What is the purpose of safranin in the Gram stain technique?
a. It is a counterstain, which will make gram-positive bacteria colorless. b. It is a decolorizing agent. c. It is the primary stain used to impart a pink color to all cells in a heat-fixed smear. d. It is a counterstain, which turns gram-negative bacteria pink.