The presence of an antibiotic in the media where the bacteria are grown enables the selection of colonies grown from
(a) transformed cells.
(b) nontransformed cells.
(c) cells that have the gene for resistance to the antibiotic.
(d) both a and c.
(a) transformed cells.
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What two factors are associated with a decline in fast-twitch muscles?
What will be an ideal response?
A herring gull and a black-backed gull are different biological species
a. true b. false
People who wash their hands frequently during cold season typically have fewer colds than those who do not. This observation suggests cold viruses can be transmitted by
A. fomites. B. mechanical vectors. C. biological vectors. D. direct contact. E. both direct contact and fomites.
What type of tissue would be found lining the inside of a mouse intestine?
a. Simple squamous epithelium b. Simple cuboidal epithelium c. Smooth muscle d. Simple columnar epithelium e. striated muscle tissue