6.6

Gene Expression and Cell Specialization

AP Biology

Gene Expression and Cell Specialization

Differential gene expression

Evidence: nuclear transplantation

Cell differentiation

Key principle

Stem cells

Induced pluripotent stem cells (iPSCs)

Induction and cell signaling in development

Induction

Morphogens

Cytoplasmic determinants

Homeotic (Hox) genes

Key features

Gene expression patterns in different cell types

Apoptosis in development

Vocabulary