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.

Biology & Microbiology

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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?

Biology & Microbiology

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?

Biology & Microbiology

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.

Biology & Microbiology

Carbon has atomic number 6. Carbon most likely

A) shares protons. B) loses electrons. C) shares neutrons. D) shares electrons. E) loses protons.

Biology & Microbiology