The size of a PCR product is mainly determined 

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#Question id: 26354

#Unit 2. Cellular Organization

Presence of introns leads to which phenomenon

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#Question id: 12778

#Unit 10. Ecological Principles

A population of white-footed mice becomes severely overpopulated in a habitat that has been disturbed by human activity. Sometimes intrinsic factors cause the population to increase in mortality and lower reproduction rates in reaction to the stress of overpopulation. Which of the following is an example of intrinsic population control?

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#Question id: 32260

#Unit 2. Cellular Organization

Multiple translocator complexes move different proteins from the ER membrane or lumen into the cytosol. Translocator complexes always contain an enzyme marking them for destruction, called:

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#Question id: 3869

#Unit 3. Fundamental Processes

Which one of the following statements about E. coli RNA polymerase (core enzyme) is false?

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#Question id: 5325

#Unit 8. Inheritance Biology

Cystic fibrosis is caused by a recessive lethal gene and can be detected by an excess concentration of chloride in sweat. A normal man whose sister has cystic fibrosis, his normal wife whose brother has cystic fibrosis. What is chance of cystic fibrosis in their child?