First observed by Lederberg and Zinder (1952) in Salmonella typhimurium

A. Transformation
B. Transduction
C. Conjugation
D. All of the answers are correct


B

Biology & Microbiology

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Allof the following evidence supports the RNA world hypothesisexcept:

A. RNA can function as a genome. B. An RNA component of ribosomes catalyzes the synthesis of proteins. C. RNA can serve a structural role. D. RNA stabilizes membranes. E. RNA regulates gene expression.

Biology & Microbiology

The ecosystem that would most likely have a high net primary productivity is a

A. desert. B. tropical rain forest. C. boreal forest. D. temperate forest. E. tundra.

Biology & Microbiology

The letter B” in the above figure represents its

a. shell. b. mantle. c. gills. d. siphon. e. none of these.

Biology & Microbiology

The validity of scientific discoveries should be based on

a. morality. b. aesthetics. c. philosophy. d. economics. e. evidence.

Biology & Microbiology