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1-What is the purpose of the selectable marker on a vector plasmid? Give an example of how a selectable marker is used.
2-How do you think PCR could be used to determine if a public water supply is contaminated with a hazardous bacteria? What would be necessary to do this analysis?
Glucose and sucrose showed a reaction. Lactose and galactose didn't. Why?Glucose and sucrose easily made alcohol.
Determine the genotype and phenotype on the F1 and F2 generations when you cross a wildtype female with a double mutant male.
State the distribution of eye color among the male & female offspring derived from each of the following crosses considering the following:
Why does the primary structure of collagen contain a glycine every third residue? Why are many of the prolines hydroxylated?
What traits are shared plants in the Liliaceae and Amaryllidaceae families? What environmental conditions may have driven the evolution of these shared traits?
Grace heard on the evening TV news that the deep population in her state had been increasing rapidly in the past few years and it was common knowledge that deer walked the streets at night.
Iron (III) nitrate solution reacts with lithium hydroxide solution to produce solid iron (III) hydroxide and lithium nitrate solution.
Describe a microarray and how it works? Indicate what is fixed to a support and what is used to probe the microarray. How does a microarray differ from a Northern blot.
Several times, pathogens in foods occur in low numbers and are mixed in with many non-pathogens. What did you learn about in.
Sinorhizobium meliloti can be protected from osmotic stress by the presence of certain disaccharides. Dan Orr found that sucrose does a fine job as an osmoprotectant for our strain of S. meliloti,
A lacI+ lacO+ lacZ+ lacY+ Hfr strain is mated with an F- lacI- lacO+ lacZ- lacY- strain. In the absence of any inducer in the medium, beta-galactosidase is made for a short time after the lac region has been transferred. Explain why it is made and..
Sometimes mammalian tumor cells grow so quickly that they outgrow the formation of blood vessels and thus must grow with inadequate oxygen supplies.
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