A yogurt, which had "contains live cultures" on its label, was transferred onto an acidic carbohydrate-containing medium for selective enrichment. Eventually, isolates of the ________ genus were obtained
A) Lactobacillus
B) Leuconostoc
C) Peptococcus
D) Streptococcus
Answer: A
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In contrast to linear DNA, circular DNA replication typically:
A. has a single origin of replication. B. does not produce a replication bubble. C. occurs only at a single replication fork. D. does not produce Okazaki fragments. E. All of the answer options are correct.
A respiratory surface is indicated by
a. A. b. B. c. C. d. D. e. E.
Which of the following cells contain a plasma membrane?
A) Animal cells only B) Animal cells and plant cells only C) Animal cells, plant cells, and bacterial cells D) Bacterial cells only
During gel electrophoresis, large DNA fragments will _____ small DNA fragments.
A. migrate more rapidly than B. separate into C. migrate at the same speed as D. cause degradation of E. migrate more slowly than