Which of correct for the description "acid slant, acid butt, no H2S"?
a. Salmonella spp.
b. E. coli
c. Proteus spp.
d. Pseudomonas spp.
B
Biochemical profiles obtained with TSI agar are often used to presumptively identify enteric pa-thogens. Organisms that exhibit the profiles listed require further biochemical profiling and, in the case of Salmonella spp. and Shigella spp., serotyping to establish a definitive identification.
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In rabbits, there is a gene that controls ear length, with a dominant allele "T" for long ears and a recessive allele "t" for short ears. At another gene locus, there are alleles “B” for black coat and “W” for white coat. Neither the B or W allele is dominant, and BW produces a gray coat. These two allele pairs assort independently. If a gray rabbit that is heterozygous at the gene locus controlling ear length is mated with a white rabbit that is also heterozygous at the gene locus controlling ear length, what is the probability that their first offspring will be gray with long ears?
A. 1/16 B. 3/16 C. 1/8 D. 3/8 E. 1/2 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about two-gene crosses and independent assortment? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In_______, cells are tagged with a fluorescent dye and injected into a flowing, progressively narrowing stream of fluid, forcing one cell at a time through a laser beam that scatters its fluorescence to a detector.
What will be an ideal response?
What information is used to mathematically calculate species diversity? Select all that apply.
_____ Number of species in the community _____ Relative abundance of species in the community. _____ Spatial distribution of species in the community. _____ Frequency of disturbance in the community. _____ Net reproductive rates of species in the community.
Carbon has atomic number 6. Carbon most likely
A) shares protons. B) loses electrons. C) shares neutrons. D) shares electrons. E) loses protons.