Which of the following are transcription factors?

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#Question id: 1413

#SCPH05 I Biotechnology

Which of the following is a feature that defines a cell dying in response to tissue damage (necrosis)?

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#Question id: 360

#SCPH01 Biochemistry

Which of the following is considered to be a strong base (alkali)?

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#Question id: 15617

#SCPH01 Biochemistry

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1–, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac–). During an condition you have a wild type (Lac+) strain carrying a Tn5 insertion known to be near several Lac genes on the E. coli chromosome. You grow P1 phage on this strain and use the resulting phage lysate to infect the lac1– strain, selecting for kanamycin resistance (Kanr). Among 100 Kanr transductants, you find that 82 are Lac– and 18 are Lac+. Express the distance between Tn5 and the lac1– mutation as a cotransduction frequency;

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#Question id: 14213

#SCPH05 I Biotechnology

Which phase has the condition of specific growth rate “μ = 0”?

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#Question id: 343

#SCPH05 I Biotechnology

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?