When the change in linking number associated with each nucleosome was measured, it was approximately –1.2 for each nucleosome added, while theoretically it should create a writhe of –1.65, This discrepancy is referred to as the

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#Question id: 3032

#Unit 2. Cellular Organization

Which of these statements about prokaryotes is correct?

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#Question id: 3709

#Unit 3. Fundamental Processes

DNA that has been liberally labeled with radioactive 14C is used as the template for replication. Replication is carried out in a medium containing only unlabeled nucleotides. After two rounds of replication, what percent of DNA molecules are still labeled?

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#Question id: 19714

#Unit 3. Fundamental Processes

The extension of GGGGTT is prioritize, while the extension of CCCCAA is not possible because of 

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#Question id: 28420

#Unit 5. Developmental Biology

Which of the following cell is involved to shedding of most of the deep cells during chick development?

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#Question id: 10877

#Unit 7. System Physiology – Animal

A 27-year-old man is breathing quietly. He then inhales as much air as possible and exhales as much air as he can, producing the spirogram shown in the previous figure. What is his expiratory reserve volume (in liters)?