6.6

Gene Expression and Cell Specialization

AP Biology

Gene Expression and Cell Specialization

Differential gene expression

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Evidence: nuclear transplantation

Cell differentiation

Key principle

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Stem cells

Induced pluripotent stem cells (iPSCs)

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Induction and cell signaling in development

Induction

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Morphogens

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Cytoplasmic determinants

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Homeotic (Hox) genes

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Key features

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Gene expression patterns in different cell types

Apoptosis in development

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Vocabulary