How are transformed bacteria that contain a plasmid with an inserted foreign gene identi?ed?
What will be an ideal response?
The plasmids used in this experiment also contain the LacZ gene, which activates ?-galactosidase. This enzyme cleaves the X-gal, which is also present in the media. The products of this reaction, in the presence of inducer (IPTG), give rise to blue-colored bacterial colonies.
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In a eukaryotic cell, the electron transport system occurs in the
A. ribosome. B. lysosome. C. mitochondrion. D. nucleus. E. cytoplasm.
The simplest entity that exhibits all of the properties of life is called a(n)
a. cell. b. molecule. c. organ. d. tissue. e. organism.
In nonrandom mating, each individual in a population has an equal chance of mating with any individual of the
opposite sex. _________ Indicate whether the statement is true or false.
The archaea known as halophiles
A. require temperatures above 45°C to survive. B. require salt concentrations of 9% or greater to survive. C. are members of the phylum Euryarchaeota. D. are members of the Euryarchaeota and require temperatures above 45°C. E. are members of the Euryarchaeota and require salt concentrations above 9%.