Which procedure is most associated with unsuccessful transformation and degradation of DNA?
A. Addition of DNA fragments from competent bacteria to live, noncompetent bacteria without artificial induction.
B. Integration of DNA fragments in competent bacteria following naturally-occurring transformation.
C. Naturally-occurring transformation with DNA fragments in competent bacteria.
D. Induced transformation with plasmid DNA in noncompetent bacteria.
Answer: C
You might also like to view...
The correct microbiological term for the sample of specimen that is put into a nutrient medium to produce a culture is ________.
A. streak B. colony C. loop D. inoculum
Approximately, how many varieties of edible
apples existed in the days of Johnny Appleseed?
a. 6 b. 16 c. 160 d. 1600 e. 16,000
Cellular respiration is essential to eukaryotic cells because
A) it is a process of anabolic reactions necessary for DNA synthesis. B) it breaks down ATP molecules into ADP and a phosphate. C) the process releases energy from organic substrates. D) it releases energy from anabolic reactions, which then can be used to drive catabolic reactions. E) the process stimulates the catabolism of potentially toxic molecules absorbed during digestion.
Which of the following species was once considered so benign that microbiologists used it to trace movements of air currents in hospitals and over cities?
A. Morganella B. Providencia C. Citrobacter D. Serratia E. Legionella