Another effect that appears to be a major factor in the stability of the photosynthetic apparatus, which occurs when excess excitation arriving at the PSII reaction center leads to its inactivation and damage is known as

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#Question id: 1919

#Unit 4. Cell Communication and Cell Signaling

Strongly immunogenic tumors appear:

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#Question id: 15843

#Unit 8. Inheritance Biology

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: 33908

#Unit 2. Cellular Organization

How is the linking number altered if one DNA strand is broken

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#Question id: 2958

#Unit 2. Cellular Organization

Which of the following structures is not a feature of the mitotic chromosome?

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#Question id: 10392

#Unit 6. System Physiology – Plant

Structural domains in phytochrome are dimeric chromoproteins. The two sub‐units of phytochromes are linked with