A recombinant DNA was constructed by inserting the DNA of interest into the AmpR gene of a pBR322 vector. The vector also contains a TetR gene that is not interrupted
After introducing the recombinant DNA into bacterial cells, the resulting transformants were tested on a variety of media. Which of the following results would be expected?
A. growth on both ampicillin containing media and tetracycline containing media
B. growth on ampicillin but not tetracycline containing media
C. growth on tetracycline but not ampicillin containing media
D. no growth on either ampicillin or tetracycline containing media
E. growth only on media containing both antibiotics
C
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Detecting a specific protein with an antibody is considered a(n) ________ method
A) selection B) screening C) isolation D) duplication
Englemann’s experiment was designed to determine ____
a. what wavelengths comprise visible light b. what colors are contained in visible light c. if bacteria are attracted to oxygen d. if photosynthesis releases oxygen e. if photosynthesis is impacted by the color of light
In logistic growth, the point at which population growth ceases is referred to as the
A) threshold of security. B) Malthusian parameter. C) saturation point. D) carrying capacity.
Animals that are being hunted (often illegally) for body parts thought to have medicinal value include:a
rhinos and bears. b. cheetahs and snow leopards. c. snow leopards and bears. d. wolves and mountain lions. e. mountain lions and black-footed ferrets