Which phenotypic assay could be used to determine whether a new Streptococcus sp. is of the pyogenes or viridans group?

A) catalase assay with H2O2
B) hemolytic type after growth on a blood agar plate
C) occurrence of cells being in clusters or as individual cells under a microscope
D) product(s) formed during lactose fermentation


Answer: C

Biology & Microbiology

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Which term is used to describe the overall 5?-to-3? direction of linked nucleotides in a DNA chain?

A) complementarity B) sequence C) polarity D) primacy

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The enzyme ?-kinase adds phosphates to specific proteins.

a. true b. false

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Based on the information in the graph, you can determine that the DNA of the new strain has a high

A) G-C content with respect to E. coli. B) pyrimidine content with respect to E. coli. C) A-T content with respect to E. coli. D) purine content, with respect to E. coli. E) histone content with respect to E. coli.

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From the perspective of inclusive fitness, a diploid individual would be more likely to perform an altruistic act for a cousin than for a half-sibling. 

Answer the following statement true (T) or false (F)

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