Some members of the alphaproteobacteria produce a structure called a (filament/prostheca/pilus) to produce extra surface area for nutrient absorption
What will be an ideal response?
prostheca
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Create an experiment where you would use both a Southern blot and a Northern blot to determine if a newly isolated bacterium contains and actively uses the same catabolic pathway as previously demonstrated
What is the value in doing the Southern blot first? With results from these experiments, how would you conclude if the same pathway is active or not? What will be an ideal response?
Inflammation is a nonspecific defensive reaction to a tissue injury.
Answer the following statement true (T) or false (F)
When DNA probes are used to identify bacterial DNA similarities by hybridization, the probe DNA is heated and the template DNA is treated to separate the two strands.Why would the probe DNA be heated?
A. This is the only way to properly label the probe DNA. B. The probe may contain portions that are double-stranded. Heating it up breaks any possible hydrogen bonds that may have formed allowing the single-stranded sequences to hybridize with their complementary targets. C. Heating it up activates the tag on the probe DNA before it hybridizes to the bacterial template DNA. D. DNA hybridization can only take place at high temperatures, so all the DNA must be heated up prior to hybridization.
________ refers to random changes in allele frequency as a result of chance events
Fill in the blank(s) with correct word