Place the following steps in the correct order to reflect how a plaque assay is done: _____ Plates from different dilutions are examined and plaques are counted. _____ Dilutions are mixed with the appropriate bacterial host. _____ Bacterial/sample dilution mixtures are plated on agar plates. _____ Several dilutions of sample to be assayed are prepare. _____
Plates are incubated to allow for plaque development.
Fill in the blank(s) with the appropriate word(s).
5, 2, 3, 1, 4
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Which flower trait is associated with butterfly pollination?
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How have Alaskan salmon been genetically modified?
A) Bacterial genes have been inserted to resist invasive diseases. B) Genes from freshwater algae have been inserted for an internal energy source. C) Growth hormone genes from a faster growing fish species have been inserted. D) Genes for the overproduction of essential fatty acids have been inserted.
The best definition of population density is the number of individuals:a
of all species in a given area. b. of one species in a given area. c. in a given area at a given time. d. of all species in a given area at a given time. e. of one species in a given area at a given time.
The mountain zebra (Equus zebra) and the donkey (Equus asinus) belong to the same species.
What will be an ideal response?