The disk-diffusion test is used for
A) assessing antimicrobial activity.
B) the identification of Escherichia coli.
C) the identification of viral plaques.
D) the detection of antigen.
Answer: A
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The photosynthetic amoeba is an example of a second chloroplast endosymbiotic event
A. true B. false
Each radial loop domain may contain between 10 and 100 base pairs of DNA
Indicate whether the statement is true or false
Explain why Mendel choose seven different varieties of pea plants for his experiments. What will be an ideal response?
What is the difference between cortical nephrons and juxtamedullary nephrons?
a. Juxtamedullary nephrons are more numerous than cortical ones. b. Cortical nephrons do not have loops of Henle, while juxtamedullary ones do. c. Juxtamedullary nephrons have larger glomeruli than do cortical ones. d. Juxtamedullary nephrons do not have loops of Henle, while cortical ones do. e. Juxtamedullary nephrons have more glomeruli than do cortical ones.