You have isolated two temperature-sensitive mutations in phage l that you suspect may be in the same gene. These phage mutants are called ts-1 and ts-2. Each mutant will form plaques at 35˚C but not at 42˚C. You cross ts-1 to ts-2 phage by coinfecting E. coli at the permissive temperature of 35˚C. When the resulting phage lysate is plated at 35˚C you count 10,000 plaques per ml of phage lysate, but when the same phage lysate is plated at 42˚C, there are only 80 plaques per ml.           What is the distance between the ts-1 and ts-2 mutations in m.u.?

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#Question id: 11295

#Unit 10. Ecological Principles

The amount of energy entering a food chain depends on the

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#Question id: 10133

#Unit 6. System Physiology – Plant

The PSI reaction center complex is a large multi-subunit complex in which the antenna chlorophylls are associated with the reaction center Components of the PSI reaction center are organized around as follows choose the incorrect one;

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#Question id: 3802

#Unit 3. Fundamental Processes

The last DNA to be replicated in the eukaryotic chromosome is:

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#Question id: 15458

#Unit 2. Cellular Organization

In nature, bacteria

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#Question id: 31120

#Unit 2. Cellular Organization

When a membrane is warmed through the transition temperature, Tm, what will happen?