Escherichia coli and Salmonella can remain in one location in our intestines. They would most likely contain which of the following?
A. flagella
B. spirochetes
C. glycocalyx
D. pili
E. cilia
D. pili
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Some marine species of cyanobacteria
A. do not have flagella and are, therefore, nonmotile. B. do not have flagella but are, nonetheless, motile by some unknown mechanism. C. do not have flagella but are motile by means of pseudopods. D. have flagella and are, therefore, motile.
If you're interested in studying one gene within a human, and each gene has two alleles, then how many boxes would be used in the Punnett square to predict the inheritance of the alleles?
A) 2 B) 4 C) 8 D) 16
Which of the immunizations would carry the greatest risk for immunocompromised patients?
A. subunit vaccines B. immune serums C. attenuated vaccines D. killed, inactivated vaccines E. toxoids
Which of the following actions would increase enzymatic activity in a bacterial cell that normally thrives in the human body?
a. adding a second substrate that can act as a competitive inhibitor b. slightly increasing the temperature within the optimum range c. placing the bacteria in the refrigerator d. increasing the substrate level in the environment beyond saturation