1 roentgen unit is a quantity of X ray that produces 2.083X109 ion pairs in one cubic centimeter of air at 0C and a pressure of 760 mm of mercury.

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#Id: 6296

#Unit 3. Fundamental Processes

The start point is usually (90% of the time) a purine. It is common for the start point to be the central base in the sequence CAT, but the conservation of this triplet is not great enough to regard it as an obligatory signal.

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#Id: 7966

#Unit 2. Cellular Organization

Binding of BiP to the luminal domain of monomeric Ire1 prevents formation of the Ire1 dimer.

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#Id: 9709

#Unit 4. Cell Communication and Cell Signaling

Gβγ activates Cdc24, a GEF for Cdc42

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#Id: 1711

#Unit 4. Cell Communication and Cell Signaling

Healthy individuals generate IgE antibodies only in response to parasitic infections.

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#Id: 8969

#Unit 11. Evolution and Behavior

The amount of genetic variation by examining phenotypic variation was difficult because many traits, a complex interaction of many genes and environmental factors determines the phenotype