2 Cellular Differentiation 1 Regulation

2 Cellular Differentiation 1 Regulation - Big Question in...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Big Question in Developmental Biology: How is it that a single cell gives rise to a multicellular organism composed of at least 100 different cell types yet all the cell types have the same genes?? This is the question of how cells undergo cellular differentiation , the process by which cells become specialized in structure and function.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Mechanisms of Cellular Differentiation I. Regulation of Gene Expression II. Mechanisms that Produce Signals Leading to the Regulation of Gene Expression A. Cytoplasmic Segregation (of cytoplasmic determinants) B. Induction
Background image of page 2
Fig. 18.6 DNA Signal Gene NUCLEUS Chromatin modification Chromatin Gene available for transcription Exon Intron Tail RNA Cap RNA processing Primary transcript mRNA in nucleus Transport to cytoplasm mRNA in cytoplasm Translatio n CYTOPLASM Degradation of mRNA Protein processing Polypeptide Active protein Cellular function Transport to cellular destination Degradation of protein Transcription Stages in Gene Expression that can be Regulated in Eukaryotic Cells
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Fig. 18.6a
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

2 Cellular Differentiation 1 Regulation - Big Question in...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online