A type II error is assigned when a true alternative hypothesis is not acknowledged. In other words, an examiner may miss discovering the bear when in fact a bear is present (hence fails in raising the alarm).

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#Id: 9469

#Unit 4. Cell Communication and Cell Signaling

IL-2 receptor complex activates

STATs 1, 3, and 5 but not STATs 2 or 4

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#Id: 124

#Unit 5. Developmental Biology

The optic vesicle is able to induce lens formation in the anterior ectoderm but not in the presumptive trunk and abdomen.

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#Id: 1598

#Unit 5. Developmental Biology

Cell migration mediated by the activation of the Wnt planar cell polarity pathway in the epiblast next to Koller’s sickle, at the posterior edge of the embryo.

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#Id: 8109

#Unit 1. Molecules and their Interaction Relevant to Biology

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#Id: 8956

#Unit 11. Evolution and Behavior

Mixtures of exons duplicated from genes with different functions can generate new genes with new functions, a process that is called exon shuffling.